How the astrological beneficence of various planets calculated?

To calculate the astrological beneficence of various planets, first of all, we need to determine the functional benefic and functional malefic planets, as told by sage Parashara, and the principles told in various other streams of Vedic Jyotish to measure the exact benefic or malefic nature of the nine planets in the native's horoscope. The importance of various astrological parameters is to be calibrated very carefully - as told in ancient Vedic Jyotish texts.  Some of the commonly used principles are:

The above written are only some of the most commonly used principles. Besides them, a learned astrologer should also apply special principles to arrive at more accurate "beneficience values", as far as possible. At times, these special Jyotish principles may over-shadow the net result obtained through the normally used Parashari principles to determine the beneficence of a planet. In such cases, these special principles prevail and may reduce (or enhance) beneficence of a planet considerably.

Shyam has developed a special software for all these complicated calculations after many years of research.