1300% is the change from 45 to 630
Calculation steps:
[( 630 - 45 ) ÷ 45] x 100 = 1300%
Formula
Percentage change = [(630 - 45) / 45] x 100
Subtract the new number by the original number
630 - 45 = 585
585 ÷ 45 = 13
13 x 100 = 1300%
Example