-86.48% is the change from 947 to 128
Calculation steps:
[( 128 - 947 ) ÷ 947] x 100 = -86.48%
Formula
Percentage change = [(128 - 947) / 947] x 100
Subtract the new number by the original number
128 - 947 = -819
-819 ÷ 947 = -0.8648363252375924
-0.8648363252375924 x 100 = -86.48%