-19.17% is the change from 793 to 641
Calculation steps:
[( 641 - 793 ) ÷ 793] x 100 = -19.17%
Formula
Percentage change = [(641 - 793) / 793] x 100
Subtract the new number by the original number
641 - 793 = -152
-152 ÷ 793 = -0.19167717528373265
-0.19167717528373265 x 100 = -19.17%