-32.8% is the change from 750 to 504
Calculation steps:
[( 504 - 750 ) ÷ 750] x 100 = -32.8%
Formula
Percentage change = [(504 - 750) / 750] x 100
Subtract the new number by the original number
504 - 750 = -246
-246 ÷ 750 = -0.328
-0.328 x 100 = -32.8%