13.2% is the change from 515 to 583
Calculation steps:
[( 583 - 515 ) ÷ 515] x 100 = 13.2%
Formula
Percentage change = [(583 - 515) / 515] x 100
Subtract the new number by the original number
583 - 515 = 68
68 ÷ 515 = 0.13203883495145632
0.13203883495145632 x 100 = 13.2%