-36.48% is the change from 488 to 310
Calculation steps:
[( 310 - 488 ) ÷ 488] x 100 = -36.48%
Formula
Percentage change = [(310 - 488) / 488] x 100
Subtract the new number by the original number
310 - 488 = -178
-178 ÷ 488 = -0.36475409836065575
-0.36475409836065575 x 100 = -36.48%