-58% is the change from 750 to 315
Calculation steps:
[( 315 - 750 ) ÷ 750] x 100 = -58%
Formula
Percentage change = [(315 - 750) / 750] x 100
Subtract the new number by the original number
315 - 750 = -435
-435 ÷ 750 = -0.58
-0.58 x 100 = -58%
Example