-33.25% is the change from 764 to 510
Calculation steps:
[( 510 - 764 ) ÷ 764] x 100 = -33.25%
Formula
Percentage change = [(510 - 764) / 764] x 100
Subtract the new number by the original number
510 - 764 = -254
-254 ÷ 764 = -0.3324607329842932
-0.3324607329842932 x 100 = -33.25%