-54.92% is the change from 488 to 220
Calculation steps:
[( 220 - 488 ) ÷ 488] x 100 = -54.92%
Formula
Percentage change = [(220 - 488) / 488] x 100
Subtract the new number by the original number
220 - 488 = -268
-268 ÷ 488 = -0.5491803278688525
-0.5491803278688525 x 100 = -54.92%