-20.81% is the change from 793 to 628
Calculation steps:
[( 628 - 793 ) ÷ 793] x 100 = -20.81%
Formula
Percentage change = [(628 - 793) / 793] x 100
Subtract the new number by the original number
628 - 793 = -165
-165 ÷ 793 = -0.2080706179066835
-0.2080706179066835 x 100 = -20.81%