-41.32% is the change from 121 to 71
Calculation steps:
[( 71 - 121 ) ÷ 121] x 100 = -41.32%
Formula
Percentage change = [(71 - 121) / 121] x 100
Subtract the new number by the original number
71 - 121 = -50
-50 ÷ 121 = -0.4132231404958678
-0.4132231404958678 x 100 = -41.32%