102.02% is the change from 247 to 499
Calculation steps:
[( 499 - 247 ) ÷ 247] x 100 = 102.02%
Formula
Percentage change = [(499 - 247) / 247] x 100
Subtract the new number by the original number
499 - 247 = 252
252 ÷ 247 = 1.0202429149797572
1.0202429149797572 x 100 = 102.02%