-19.7% is the change from 792 to 636
Calculation steps:
[( 636 - 792 ) ÷ 792] x 100 = -19.7%
Formula
Percentage change = [(636 - 792) / 792] x 100
Subtract the new number by the original number
636 - 792 = -156
-156 ÷ 792 = -0.19696969696969696
-0.19696969696969696 x 100 = -19.7%