-3.6% is the change from 750 to 723
Calculation steps:
[( 723 - 750 ) ÷ 750] x 100 = -3.6%
Formula
Percentage change = [(723 - 750) / 750] x 100
Subtract the new number by the original number
723 - 750 = -27
-27 ÷ 750 = -0.036
-0.036 x 100 = -3.6%
Example