-24.9% is the change from 510 to 383
Calculation steps:
[( 383 - 510 ) ÷ 510] x 100 = -24.9%
Formula
Percentage change = [(383 - 510) / 510] x 100
Subtract the new number by the original number
383 - 510 = -127
-127 ÷ 510 = -0.24901960784313726
-0.24901960784313726 x 100 = -24.9%