-33.02% is the change from 421 to 282
Calculation steps:
[( 282 - 421 ) ÷ 421] x 100 = -33.02%
Formula
Percentage change = [(282 - 421) / 421] x 100
Subtract the new number by the original number
282 - 421 = -139
-139 ÷ 421 = -0.33016627078384797
-0.33016627078384797 x 100 = -33.02%