-37.01% is the change from 797 to 502
Calculation steps:
[( 502 - 797 ) ÷ 797] x 100 = -37.01%
Formula
Percentage change = [(502 - 797) / 797] x 100
Subtract the new number by the original number
502 - 797 = -295
-295 ÷ 797 = -0.370138017565872
-0.370138017565872 x 100 = -37.01%