-93.09% is the change from 811 to 56
Calculation steps:
[( 56 - 811 ) ÷ 811] x 100 = -93.09%
Formula
Percentage change = [(56 - 811) / 811] x 100
Subtract the new number by the original number
56 - 811 = -755
-755 ÷ 811 = -0.9309494451294698
-0.9309494451294698 x 100 = -93.09%