32.04% is the change from 515 to 680
Calculation steps:
[( 680 - 515 ) ÷ 515] x 100 = 32.04%
Formula
Percentage change = [(680 - 515) / 515] x 100
Subtract the new number by the original number
680 - 515 = 165
165 ÷ 515 = 0.32038834951456313
0.32038834951456313 x 100 = 32.04%