-56.97% is the change from 976 to 420
Calculation steps:
[( 420 - 976 ) ÷ 976] x 100 = -56.97%
Formula
Percentage change = [(420 - 976) / 976] x 100
Subtract the new number by the original number
420 - 976 = -556
-556 ÷ 976 = -0.569672131147541
-0.569672131147541 x 100 = -56.97%