-76.01% is the change from 421 to 101
Calculation steps:
[( 101 - 421 ) ÷ 421] x 100 = -76.01%
Formula
Percentage change = [(101 - 421) / 421] x 100
Subtract the new number by the original number
101 - 421 = -320
-320 ÷ 421 = -0.7600950118764845
-0.7600950118764845 x 100 = -76.01%