-46.56% is the change from 421 to 225
Calculation steps:
[( 225 - 421 ) ÷ 421] x 100 = -46.56%
Formula
Percentage change = [(225 - 421) / 421] x 100
Subtract the new number by the original number
225 - 421 = -196
-196 ÷ 421 = -0.4655581947743468
-0.4655581947743468 x 100 = -46.56%