78.37% is the change from 504 to 899
Calculation steps:
[( 899 - 504 ) ÷ 504] x 100 = 78.37%
Formula
Percentage change = [(899 - 504) / 504] x 100
Subtract the new number by the original number
899 - 504 = 395
395 ÷ 504 = 0.7837301587301587
0.7837301587301587 x 100 = 78.37%