-35.28% is the change from 788 to 510
Calculation steps:
[( 510 - 788 ) ÷ 788] x 100 = -35.28%
Formula
Percentage change = [(510 - 788) / 788] x 100
Subtract the new number by the original number
510 - 788 = -278
-278 ÷ 788 = -0.35279187817258884
-0.35279187817258884 x 100 = -35.28%