-36.89% is the change from 488 to 308
Calculation steps:
[( 308 - 488 ) ÷ 488] x 100 = -36.89%
Formula
Percentage change = [(308 - 488) / 488] x 100
Subtract the new number by the original number
308 - 488 = -180
-180 ÷ 488 = -0.36885245901639346
-0.36885245901639346 x 100 = -36.89%