1780% is the change from 40 to 752
Calculation steps:
[( 752 - 40 ) ÷ 40] x 100 = 1780%
Formula
Percentage change = [(752 - 40) / 40] x 100
Subtract the new number by the original number
752 - 40 = 712
712 ÷ 40 = 17.8
17.8 x 100 = 1780%
Example