28.93% is the change from 515 to 664
Calculation steps:
[( 664 - 515 ) ÷ 515] x 100 = 28.93%
Formula
Percentage change = [(664 - 515) / 515] x 100
Subtract the new number by the original number
664 - 515 = 149
149 ÷ 515 = 0.28932038834951457
0.28932038834951457 x 100 = 28.93%