-79.2% is the change from 750 to 156
Calculation steps:
[( 156 - 750 ) ÷ 750] x 100 = -79.2%
Formula
Percentage change = [(156 - 750) / 750] x 100
Subtract the new number by the original number
156 - 750 = -594
-594 ÷ 750 = -0.792
-0.792 x 100 = -79.2%