-53.86% is the change from 479 to 221
Calculation steps:
[( 221 - 479 ) ÷ 479] x 100 = -53.86%
Formula
Percentage change = [(221 - 479) / 479] x 100
Subtract the new number by the original number
221 - 479 = -258
-258 ÷ 479 = -0.5386221294363257
-0.5386221294363257 x 100 = -53.86%