-86.42% is the change from 847 to 115
Calculation steps:
[( 115 - 847 ) ÷ 847] x 100 = -86.42%
Formula
Percentage change = [(115 - 847) / 847] x 100
Subtract the new number by the original number
115 - 847 = -732
-732 ÷ 847 = -0.8642266824085005
-0.8642266824085005 x 100 = -86.42%