-71.93% is the change from 488 to 137
Calculation steps:
[( 137 - 488 ) ÷ 488] x 100 = -71.93%
Formula
Percentage change = [(137 - 488) / 488] x 100
Subtract the new number by the original number
137 - 488 = -351
-351 ÷ 488 = -0.7192622950819673
-0.7192622950819673 x 100 = -71.93%