-86.17% is the change from 947 to 131
Calculation steps:
[( 131 - 947 ) ÷ 947] x 100 = -86.17%
Formula
Percentage change = [(131 - 947) / 947] x 100
Subtract the new number by the original number
131 - 947 = -816
-816 ÷ 947 = -0.8616684266103485
-0.8616684266103485 x 100 = -86.17%