1500% is the change from 42 to 672
Calculation steps:
[( 672 - 42 ) ÷ 42] x 100 = 1500%
Formula
Percentage change = [(672 - 42) / 42] x 100
Subtract the new number by the original number
672 - 42 = 630
630 ÷ 42 = 15
15 x 100 = 1500%
Example