-70.84% is the change from 415 to 121
Calculation steps:
[( 121 - 415 ) ÷ 415] x 100 = -70.84%
Formula
Percentage change = [(121 - 415) / 415] x 100
Subtract the new number by the original number
121 - 415 = -294
-294 ÷ 415 = -0.708433734939759
-0.708433734939759 x 100 = -70.84%