1450% is the change from 42 to 651
Calculation steps:
[( 651 - 42 ) ÷ 42] x 100 = 1450%
Formula
Percentage change = [(651 - 42) / 42] x 100
Subtract the new number by the original number
651 - 42 = 609
609 ÷ 42 = 14.5
14.5 x 100 = 1450%
Example