98.39% is the change from 249 to 494
Calculation steps:
[( 494 - 249 ) ÷ 249] x 100 = 98.39%
Formula
Percentage change = [(494 - 249) / 249] x 100
Subtract the new number by the original number
494 - 249 = 245
245 ÷ 249 = 0.9839357429718876
0.9839357429718876 x 100 = 98.39%