-19.19% is the change from 787 to 636
Calculation steps:
[( 636 - 787 ) ÷ 787] x 100 = -19.19%
Formula
Percentage change = [(636 - 787) / 787] x 100
Subtract the new number by the original number
636 - 787 = -151
-151 ÷ 787 = -0.19186785260482847
-0.19186785260482847 x 100 = -19.19%