-84.55% is the change from 971 to 150
Calculation steps:
[( 150 - 971 ) ÷ 971] x 100 = -84.55%
Formula
Percentage change = [(150 - 971) / 971] x 100
Subtract the new number by the original number
150 - 971 = -821
-821 ÷ 971 = -0.8455200823892894
-0.8455200823892894 x 100 = -84.55%