180% is the change from 180 to 504
Calculation steps:
[( 504 - 180 ) ÷ 180] x 100 = 180%
Formula
Percentage change = [(504 - 180) / 180] x 100
Subtract the new number by the original number
504 - 180 = 324
324 ÷ 180 = 1.8
1.8 x 100 = 180%
Example