-22.32% is the change from 663 to 515
Calculation steps:
[( 515 - 663 ) ÷ 663] x 100 = -22.32%
Formula
Percentage change = [(515 - 663) / 663] x 100
Subtract the new number by the original number
515 - 663 = -148
-148 ÷ 663 = -0.22322775263951736
-0.22322775263951736 x 100 = -22.32%