-20.9% is the change from 488 to 386
Calculation steps:
[( 386 - 488 ) ÷ 488] x 100 = -20.9%
Formula
Percentage change = [(386 - 488) / 488] x 100
Subtract the new number by the original number
386 - 488 = -102
-102 ÷ 488 = -0.20901639344262296
-0.20901639344262296 x 100 = -20.9%