-29.75% is the change from 121 to 85
Calculation steps:
[( 85 - 121 ) ÷ 121] x 100 = -29.75%
Formula
Percentage change = [(85 - 121) / 121] x 100
Subtract the new number by the original number
85 - 121 = -36
-36 ÷ 121 = -0.2975206611570248
-0.2975206611570248 x 100 = -29.75%