75.61% is the change from 287 to 504
Calculation steps:
[( 504 - 287 ) ÷ 287] x 100 = 75.61%
Formula
Percentage change = [(504 - 287) / 287] x 100
Subtract the new number by the original number
504 - 287 = 217
217 ÷ 287 = 0.7560975609756098
0.7560975609756098 x 100 = 75.61%