-24.31% is the change from 510 to 386
Calculation steps:
[( 386 - 510 ) ÷ 510] x 100 = -24.31%
Formula
Percentage change = [(386 - 510) / 510] x 100
Subtract the new number by the original number
386 - 510 = -124
-124 ÷ 510 = -0.24313725490196078
-0.24313725490196078 x 100 = -24.31%