-21.49% is the change from 656 to 515
Calculation steps:
[( 515 - 656 ) ÷ 656] x 100 = -21.49%
Formula
Percentage change = [(515 - 656) / 656] x 100
Subtract the new number by the original number
515 - 656 = -141
-141 ÷ 656 = -0.2149390243902439
-0.2149390243902439 x 100 = -21.49%