-35.39% is the change from 421 to 272
Calculation steps:
[( 272 - 421 ) ÷ 421] x 100 = -35.39%
Formula
Percentage change = [(272 - 421) / 421] x 100
Subtract the new number by the original number
272 - 421 = -149
-149 ÷ 421 = -0.35391923990498814
-0.35391923990498814 x 100 = -35.39%