Brihat Parashara Hora Shastra
शोध्यमङ्गाधिकं चक्राच्च्युतं भागीकृतं त्रिहृत् । सद्दृष्टिपादयुक्पापपापदृष्टिपादविवर्जितम् ॥ २८॥
If the balance in the process of deducting Nadir, Meridian, Lagn, or Yuvati exceeds 6 Rāśis, deduct it again from 12 Rāśis, before converting into degrees and dividing by 3. The product after division should be increased by one fourth, if the Bhava in question receives a benefic Drishti.
english translation
zodhyamaGgAdhikaM cakrAccyutaM bhAgIkRtaM trihRt । saddRSTipAdayukpApapApadRSTipAdavivarjitam ॥ 28॥
hk transliteration by Sanscript