-95.11% is the change from 818 to 40
Calculation steps:
[( 40 - 818 ) ÷ 818] x 100 = -95.11%
Formula
Percentage change = [(40 - 818) / 818] x 100
Subtract the new number by the original number
40 - 818 = -778
-778 ÷ 818 = -0.9511002444987775
-0.9511002444987775 x 100 = -95.11%