86.21% is the change from 515 to 959
Calculation steps:
[( 959 - 515 ) ÷ 515] x 100 = 86.21%
Formula
Percentage change = [(959 - 515) / 515] x 100
Subtract the new number by the original number
959 - 515 = 444
444 ÷ 515 = 0.8621359223300971
0.8621359223300971 x 100 = 86.21%