सपादपणा धर्म्या मासवृद्धिः पणशतस्य पञ्चपणा व्यावहारिकी दशपणा कान्तारगाणाम् विंशतिपणा सामुद्राणाम् ॥ कZ_०३.११.०१ ॥
sapādapaṇā dharmyā māsavṛddhiḥ paṇaśatasya pañcapaṇā vyāvahārikī daśapaṇā kāntāragāṇām viṃśatipaṇā sāmudrāṇām
The lawful monthly interest is one and a quarter paṇa per hundred. The ordinary commercial rate is five per hundred; for caravan/forest-route trade, ten per hundred; for sea-trade, twenty per hundred.
Risk-adjusted regulation: higher uncertainty and hazard (wilderness, sea) justify higher permitted interest, while ordinary loans are capped lower.
To prevent usury, standardize adjudication, and keep credit flowing for trade without destabilizing households and revenues.