55.92% is the change from 515 to 803
Calculation steps:
[( 803 - 515 ) ÷ 515] x 100 = 55.92%
Formula
Percentage change = [(803 - 515) / 515] x 100
Subtract the new number by the original number
803 - 515 = 288
288 ÷ 515 = 0.5592233009708738
0.5592233009708738 x 100 = 55.92%