1388.89% is the change from 45 to 670
Calculation steps:
[( 670 - 45 ) ÷ 45] x 100 = 1388.89%
Formula
Percentage change = [(670 - 45) / 45] x 100
Subtract the new number by the original number
670 - 45 = 625
625 ÷ 45 = 13.88888888888889
13.88888888888889 x 100 = 1388.89%