-22.98% is the change from 657 to 506
Calculation steps:
[( 506 - 657 ) ÷ 657] x 100 = -22.98%
Formula
Percentage change = [(506 - 657) / 657] x 100
Subtract the new number by the original number
506 - 657 = -151
-151 ÷ 657 = -0.2298325722983257
-0.2298325722983257 x 100 = -22.98%