110.2% is the change from 245 to 515
Calculation steps:
[( 515 - 245 ) ÷ 245] x 100 = 110.2%
Formula
Percentage change = [(515 - 245) / 245] x 100
Subtract the new number by the original number
515 - 245 = 270
270 ÷ 245 = 1.1020408163265305
1.1020408163265305 x 100 = 110.2%