RFP Price Scoring Formulas: Lowest-Price Ratio vs Points-per-Dollar

Why a price scoring formula rfp teams choose is never neutral

A committee chair finishes tallying technical scores for three proposals and moves to the price column. The solicitation says price is worth 30 points, but it never says how bids become points. Someone proposes dividing each price by the lowest price. Someone else suggests a points-per-dollar rate. The two methods give different spreads, and the committee has to pick one while proposals are already in hand.

That timing is the problem. A formula chosen after prices are visible can look tailored to a result, even when nobody intended it. The remedy is to fix the formula, the evaluated-price definition and the tie rule before proposals are opened.

This article walks through the two common methods with round, illustrative numbers. You will be able to explain how each converts price to points, where each one behaves oddly, and what to record in the file.

What the regulation requires and what it leaves open

For a competitive proposal under a federal award, 2 CFR 200.320(b)(2)(i) requires the solicitation to identify all evaluation factors and their relative importance. Price is one of those factors in most proposals. Under 2 CFR 200.320(b)(2)(iii), contracts "must be awarded to the responsible offeror whose proposal is most advantageous to the recipient or subrecipient considering price and other factors."

Nothing in that language prescribes a particular price-to-points formula. Neither method below is required or preferred by regulation. The choice belongs to the issuer, within its written evaluation procedures, which 2 CFR 200.320(b)(2)(ii) requires for the proposals method. State and local rules may add requirements, and the stricter rule governs. Confirm the current text at eCFR, and confirm any local requirements with your awarding agency or pass-through entity.

One exception matters. Qualifications-based selection for architectural and engineering services excludes price as a selection factor under 2 CFR 200.320(b)(2)(iv). Price scoring formulas do not apply there, because compensation is negotiated after the most qualified firm is chosen.

The lowest-price ratio, step by step

The lowest-price formula is the most common method. Each offer's price points equal the lowest evaluated price divided by that offer's evaluated price, multiplied by the maximum price points.

Worked example. Price is worth 30 points. Three offers come in at $80,000, $100,000 and $125,000.

• Offer A: $80,000 ÷ $80,000 × 30 = 30 points
• Offer B: $80,000 ÷ $100,000 × 30 = 24 points
• Offer C: $80,000 ÷ $125,000 × 30 = 19.2 points

The lowest price always earns the full maximum, and every other offer earns a proportional share. The method is simple to explain and easy to reproduce on a calculator, which helps when someone asks how a score was reached.

Where the ratio behaves oddly

The ratio depends on the single lowest evaluated price. If one offeror submits an unusually low number, every other offer's points fall, even if the low offer is later found non-responsive. The recalculation then has to be done and documented.

The ratio also compresses differences at the top. In the example, a $20,000 gap between A and B costs B six points, while a $25,000 gap between B and C costs C 4.8 points. The committee should look at that curve before adopting it and decide whether it matches how much the organization values price differences.

Points-per-dollar, step by step

Points-per-dollar converts each dollar of difference from a reference price into a fixed number of points. The exact definition varies by issuer, so the solicitation must state it. One generic form takes away a set number of points for each dollar, or each block of dollars, above the lowest price, down to a floor of zero.

Worked example. Price is worth 30 points. The rule is: start at 30 for the lowest price, then deduct 1 point for every $2,000 above it, with a floor of zero. The same offers at $80,000, $100,000 and $125,000 score as follows.

• Offer A: 30 points
• Offer B: $20,000 above, so 10 points deducted, for 20 points
• Offer C: $45,000 above, so 22.5 points deducted, for 7.5 points

Compared with the ratio, which gave 30, 24 and 19.2, this rule spreads the offers much further. The same bids produce a visibly different price ranking margin, and with a technical-score gap that margin can change which offer ranks first. The method is not better or worse. It is a different statement of how much price differences matter.

Where points-per-dollar behaves oddly

The rate is arbitrary unless the committee ties it to the budget range. A rate that suits a $100,000 services contract can zero out most offers on a $1,000,000 one. Because the formula can hit the floor, two offers far above the low bid may both score zero and become indistinguishable on price. The committee should test the rate against a plausible range of bids, and against the independent estimate, before the solicitation is issued.

Alternates, options and what counts as the evaluated price

Both formulas operate on the evaluated price, so what goes into that figure matters more than the formula itself. Alternates and options are the usual source of trouble.

The solicitation should say, before bids arrive, which items are in the evaluated price. A common approach includes the base price and any options the issuer commits to evaluating, and leaves alternates out unless the issuer selects them. Mixing them in after the fact changes the lowest price and shifts every other offer's points.

Record these items in the tabulation:

1. The base price as submitted.
2. Each alternate and option, listed separately.
3. Which items the solicitation placed in the evaluated price.
4. Any arithmetic correction, with the original and corrected figures.
5. The resulting evaluated price used by the formula.

For the layout of that record, see the guide to bid tabulation. If proposals are revised after a best and final request, the formula has to be rerun on the new prices, as covered in best and final offer practice.

Connecting price points to the rest of the score

Price points are only one column in the total. The formula's maximum should equal the price weight stated in the solicitation, and the weights should total 100. The article on weighted scoring covers how criteria weights are built, and the scoring matrix shows how the columns combine into a ranking.

Check the result for reasonableness before accepting it. Under 2 CFR 200.324(a), a cost or price analysis is required for every procurement transaction in excess of the simplified acquisition threshold, and independent estimates must be made before receiving bids or proposals. The simplified acquisition threshold rose from $250,000 to $350,000 effective October 1, 2025 (FAR Case 2024-001, 90 FR 41872). For an award made before that date, ask your awarding agency or pass-through entity which figure applies, and note that a local threshold may be lower. A formula only ranks offers against each other. It does not tell you whether the lowest price is reasonable, so the independent cost estimate remains a separate step.

What to put in the file and where to go next

Whichever formula you choose, the file should let a reader reconstruct the price scores without asking you. 2 CFR 200.318(i) asks for records detailed enough to show the history of the procurement, including the basis for the contract price. In practice, keep:

• the formula, stated in the solicitation and the written procedures;
• the date it was fixed, which should precede bid opening;
• the evaluated price for each offer and what it includes;
• each computed price score, with the inputs shown;
• any recalculation after a non-responsive finding or a revised offer;
• the tie rule, chosen in advance.

A workbook can carry this arithmetic. The Bid Tabulation and Price Analysis Workbook is designed to compute the lowest-price formula and points-per-dollar normalization from bids you enter, and to record a cost or price analysis. It is available in the store now, and plans are described at /pricing. The evaluation workspace is designed to apply the same formulas inside a record with an append-only audit trail. It is designed to take bids that staff enter by paste or CSV, since it never receives bids itself.

RFPManagement records and computes. It does not give legal or procurement advice. The award decision stays with your organization.