-77.14% is the change from 420 to 96
Calculation steps:
[( 96 - 420 ) ÷ 420] x 100 = -77.14%
Formula
Percentage change = [(96 - 420) / 420] x 100
Subtract the new number by the original number
96 - 420 = -324
-324 ÷ 420 = -0.7714285714285715
-0.7714285714285715 x 100 = -77.14%