-48.6% is the change from 428 to 220
Calculation steps:
[( 220 - 428 ) ÷ 428] x 100 = -48.6%
Formula
Percentage change = [(220 - 428) / 428] x 100
Subtract the new number by the original number
220 - 428 = -208
-208 ÷ 428 = -0.48598130841121495
-0.48598130841121495 x 100 = -48.6%