-26.62% is the change from 665 to 488
Calculation steps:
[( 488 - 665 ) ÷ 665] x 100 = -26.62%
Formula
Percentage change = [(488 - 665) / 665] x 100
Subtract the new number by the original number
488 - 665 = -177
-177 ÷ 665 = -0.2661654135338346
-0.2661654135338346 x 100 = -26.62%