-10.04% is the change from 488 to 439
Calculation steps:
[( 439 - 488 ) ÷ 488] x 100 = -10.04%
Formula
Percentage change = [(439 - 488) / 488] x 100
Subtract the new number by the original number
439 - 488 = -49
-49 ÷ 488 = -0.10040983606557377
-0.10040983606557377 x 100 = -10.04%