-95.28% is the change from 847 to 40
Calculation steps:
[( 40 - 847 ) ÷ 847] x 100 = -95.28%
Formula
Percentage change = [(40 - 847) / 847] x 100
Subtract the new number by the original number
40 - 847 = -807
-807 ÷ 847 = -0.9527744982290437
-0.9527744982290437 x 100 = -95.28%