-52.66% is the change from 488 to 231
Calculation steps:
[( 231 - 488 ) ÷ 488] x 100 = -52.66%
Formula
Percentage change = [(231 - 488) / 488] x 100
Subtract the new number by the original number
231 - 488 = -257
-257 ÷ 488 = -0.5266393442622951
-0.5266393442622951 x 100 = -52.66%