103.21% is the change from 249 to 506
Calculation steps:
[( 506 - 249 ) ÷ 249] x 100 = 103.21%
Formula
Percentage change = [(506 - 249) / 249] x 100
Subtract the new number by the original number
506 - 249 = 257
257 ÷ 249 = 1.0321285140562249
1.0321285140562249 x 100 = 103.21%