सपादपणो द्रोणमूल्यमाढकस्य पादोनः षण्माषकाः प्रस्थस्य माषकः कुडुबस्य ॥ कZ_०२.१९.३६ ॥
sapādapaṇo droṇamūlyamāḍhakasya pādonaḥ ṣaṇmāṣakāḥ prasthasya māṣakaḥ kuḍubasya
The price of a droṇa is one and a quarter paṇas; of an āḍhaka it is one quarter less; of a prastha it is six māṣakas; and of a kuḍuba it is one māṣaka.
It enables predictable taxation/fees, curbs arbitrary pricing, and supports enforcement against short-measuring and overcharging.