-31.57% is the change from 757 to 518
Calculation steps:
[( 518 - 757 ) ÷ 757] x 100 = -31.57%
Formula
Percentage change = [(518 - 757) / 757] x 100
Subtract the new number by the original number
518 - 757 = -239
-239 ÷ 757 = -0.3157199471598415
-0.3157199471598415 x 100 = -31.57%