520% is the change from 45 to 279
Calculation steps:
[( 279 - 45 ) ÷ 45] x 100 = 520%
Formula
Percentage change = [(279 - 45) / 45] x 100
Subtract the new number by the original number
279 - 45 = 234
234 ÷ 45 = 5.2
5.2 x 100 = 520%
Example