63.5% is the change from 515 to 842
Calculation steps:
[( 842 - 515 ) ÷ 515] x 100 = 63.5%
Formula
Percentage change = [(842 - 515) / 515] x 100
Subtract the new number by the original number
842 - 515 = 327
327 ÷ 515 = 0.6349514563106796
0.6349514563106796 x 100 = 63.5%