व्ययानन्यांश्च संख्याय स्थापयेदर्घमर्घवित् ॥ कZ_०४.२.३६च्द् ॥
vyayān anyāṃś ca saṃkhyāya sthāpayed argham arghavit
After enumerating these and other expenses, the price should be fixed by the price-knower (official valuer).
It creates a predictable, reviewable valuation process, limiting collusion and ensuring state objectives (revenue, stability, welfare) are reflected in prices.