-97.04% is the change from 811 to 24
Calculation steps:
[( 24 - 811 ) ÷ 811] x 100 = -97.04%
Formula
Percentage change = [(24 - 811) / 811] x 100
Subtract the new number by the original number
24 - 811 = -787
-787 ÷ 811 = -0.9704069050554871
-0.9704069050554871 x 100 = -97.04%