1020% is the change from 45 to 504
Calculation steps:
[( 504 - 45 ) ÷ 45] x 100 = 1020%
Formula
Percentage change = [(504 - 45) / 45] x 100
Subtract the new number by the original number
504 - 45 = 459
459 ÷ 45 = 10.2
10.2 x 100 = 1020%
Example