-97.04% is the change from 812 to 24
Calculation steps:
[( 24 - 812 ) ÷ 812] x 100 = -97.04%
Formula
Percentage change = [(24 - 812) / 812] x 100
Subtract the new number by the original number
24 - 812 = -788
-788 ÷ 812 = -0.9704433497536946
-0.9704433497536946 x 100 = -97.04%