-14.44% is the change from 748 to 640
Calculation steps:
[( 640 - 748 ) ÷ 748] x 100 = -14.44%
Formula
Percentage change = [(640 - 748) / 748] x 100
Subtract the new number by the original number
640 - 748 = -108
-108 ÷ 748 = -0.1443850267379679
-0.1443850267379679 x 100 = -14.44%