70.87% is the change from 515 to 880
Calculation steps:
[( 880 - 515 ) ÷ 515] x 100 = 70.87%
Formula
Percentage change = [(880 - 515) / 515] x 100
Subtract the new number by the original number
880 - 515 = 365
365 ÷ 515 = 0.7087378640776699
0.7087378640776699 x 100 = 70.87%