515.56% is the change from 45 to 277
Calculation steps:
[( 277 - 45 ) ÷ 45] x 100 = 515.56%
Formula
Percentage change = [(277 - 45) / 45] x 100
Subtract the new number by the original number
277 - 45 = 232
232 ÷ 45 = 5.155555555555556
5.155555555555556 x 100 = 515.56%