-14% is the change from 750 to 645
Calculation steps:
[( 645 - 750 ) ÷ 750] x 100 = -14%
Formula
Percentage change = [(645 - 750) / 750] x 100
Subtract the new number by the original number
645 - 750 = -105
-105 ÷ 750 = -0.14
-0.14 x 100 = -14%
Example