105.22% is the change from 249 to 511
Calculation steps:
[( 511 - 249 ) ÷ 249] x 100 = 105.22%
Formula
Percentage change = [(511 - 249) / 249] x 100
Subtract the new number by the original number
511 - 249 = 262
262 ÷ 249 = 1.0522088353413654
1.0522088353413654 x 100 = 105.22%