-20% is the change from 790 to 632
Calculation steps:
[( 632 - 790 ) ÷ 790] x 100 = -20%
Formula
Percentage change = [(632 - 790) / 790] x 100
Subtract the new number by the original number
632 - 790 = -158
-158 ÷ 790 = -0.2
-0.2 x 100 = -20%
Example