-70.73% is the change from 41 to 12
Calculation steps:
[( 12 - 41 ) ÷ 41] x 100 = -70.73%
Formula
Percentage change = [(12 - 41) / 41] x 100
Subtract the new number by the original number
12 - 41 = -29
-29 ÷ 41 = -0.7073170731707317
-0.7073170731707317 x 100 = -70.73%