-43.23% is the change from 421 to 239
Calculation steps:
[( 239 - 421 ) ÷ 421] x 100 = -43.23%
Formula
Percentage change = [(239 - 421) / 421] x 100
Subtract the new number by the original number
239 - 421 = -182
-182 ÷ 421 = -0.4323040380047506
-0.4323040380047506 x 100 = -43.23%