-91.5% is the change from 847 to 72
Calculation steps:
[( 72 - 847 ) ÷ 847] x 100 = -91.5%
Formula
Percentage change = [(72 - 847) / 847] x 100
Subtract the new number by the original number
72 - 847 = -775
-775 ÷ 847 = -0.9149940968122786
-0.9149940968122786 x 100 = -91.5%