120.88% is the change from 249 to 550
Calculation steps:
[( 550 - 249 ) ÷ 249] x 100 = 120.88%
Formula
Percentage change = [(550 - 249) / 249] x 100
Subtract the new number by the original number
550 - 249 = 301
301 ÷ 249 = 1.2088353413654618
1.2088353413654618 x 100 = 120.88%