-22.57% is the change from 669 to 518
Calculation steps:
[( 518 - 669 ) ÷ 669] x 100 = -22.57%
Formula
Percentage change = [(518 - 669) / 669] x 100
Subtract the new number by the original number
518 - 669 = -151
-151 ÷ 669 = -0.2257100149476831
-0.2257100149476831 x 100 = -22.57%