-13.75% is the change from 742 to 640
Calculation steps:
[( 640 - 742 ) ÷ 742] x 100 = -13.75%
Formula
Percentage change = [(640 - 742) / 742] x 100
Subtract the new number by the original number
640 - 742 = -102
-102 ÷ 742 = -0.13746630727762804
-0.13746630727762804 x 100 = -13.75%