-93.34% is the change from 811 to 54
Calculation steps:
[( 54 - 811 ) ÷ 811] x 100 = -93.34%
Formula
Percentage change = [(54 - 811) / 811] x 100
Subtract the new number by the original number
54 - 811 = -757
-757 ÷ 811 = -0.9334155363748459
-0.9334155363748459 x 100 = -93.34%