-28.93% is the change from 121 to 86
Calculation steps:
[( 86 - 121 ) ÷ 121] x 100 = -28.93%
Formula
Percentage change = [(86 - 121) / 121] x 100
Subtract the new number by the original number
86 - 121 = -35
-35 ÷ 121 = -0.2892561983471074
-0.2892561983471074 x 100 = -28.93%