-34.26% is the change from 788 to 518
Calculation steps:
[( 518 - 788 ) ÷ 788] x 100 = -34.26%
Formula
Percentage change = [(518 - 788) / 788] x 100
Subtract the new number by the original number
518 - 788 = -270
-270 ÷ 788 = -0.3426395939086294
-0.3426395939086294 x 100 = -34.26%