-71.46% is the change from 424 to 121
Calculation steps:
[( 121 - 424 ) ÷ 424] x 100 = -71.46%
Formula
Percentage change = [(121 - 424) / 424] x 100
Subtract the new number by the original number
121 - 424 = -303
-303 ÷ 424 = -0.714622641509434
-0.714622641509434 x 100 = -71.46%