103.61% is the change from 249 to 507
Calculation steps:
[( 507 - 249 ) ÷ 249] x 100 = 103.61%
Formula
Percentage change = [(507 - 249) / 249] x 100
Subtract the new number by the original number
507 - 249 = 258
258 ÷ 249 = 1.036144578313253
1.036144578313253 x 100 = 103.61%