-18.55% is the change from 787 to 641
Calculation steps:
[( 641 - 787 ) ÷ 787] x 100 = -18.55%
Formula
Percentage change = [(641 - 787) / 787] x 100
Subtract the new number by the original number
641 - 787 = -146
-146 ÷ 787 = -0.1855146124523507
-0.1855146124523507 x 100 = -18.55%