500% is the change from 84 to 504
Calculation steps:
[( 504 - 84 ) ÷ 84] x 100 = 500%
Formula
Percentage change = [(504 - 84) / 84] x 100
Subtract the new number by the original number
504 - 84 = 420
420 ÷ 84 = 5
5 x 100 = 500%
Example