Narapatijayacarya 4.4.100

And the estimations of twentieths of the current commodity price in their regard [are made] in order: / they are to be added to or deducted from the current commodity price for auspicious and inauspicious [results].

On "benefics": Benefics are Mercury, Jupiter, Venus, and the full Moon. Malefics are the Sun, Mars, Saturn, and Rāhu. In their auspicious aspects, one should reckon the fruit from viṃśopakas. Among them, by the aspects such as full of the four benefics, he gives five [viśopakas of] fruit per quarter. Beginning with Kṛttikā and ending with the eighth, the sign of the lunar mansions is Taurus and the rest; of the seven mansions beginning with Maghā, the signs are recorded as Leo and the rest; (1) of the seven mansions beginning with Anurādhā, the three signs are recorded as Scorpio and the rest;