-54.71% is the change from 488 to 221
Calculation steps:
[( 221 - 488 ) ÷ 488] x 100 = -54.71%
Formula
Percentage change = [(221 - 488) / 488] x 100
Subtract the new number by the original number
221 - 488 = -267
-267 ÷ 488 = -0.5471311475409836
-0.5471311475409836 x 100 = -54.71%