517.78% is the change from 45 to 278
Calculation steps:
[( 278 - 45 ) ÷ 45] x 100 = 517.78%
Formula
Percentage change = [(278 - 45) / 45] x 100
Subtract the new number by the original number
278 - 45 = 233
233 ÷ 45 = 5.177777777777778
5.177777777777778 x 100 = 517.78%