Brihat Parashara Hora Shastra
स्वनीचोनो ग्रह शोध्यः षड्भाधिक्ये भमण्डलात् । सैको राशिर्भवेदुच्चरश्मिर्द्विघ्नांशसंयुतः ॥ २॥
Exaltation Rays. Deduct the Grah‟s debilitation point from its actual position. If the sum exceeds 6 Rāśis, deduct from 12 Rāśis. The said sum should then be increased by 1 Rāśi. The degrees etc. be multiplied by 2, which, when considered along with Rāśis, will indicate the Uchch Rasmi of the Grah.
english translation
svanIcono graha zodhyaH SaDbhAdhikye bhamaNDalAt । saiko rAzirbhaveduccarazmirdvighnAMzasaMyutaH ॥ 2॥
hk transliteration by Sanscript