13.87% is the change from 512 to 583
Calculation steps:
[( 583 - 512 ) ÷ 512] x 100 = 13.87%
Formula
Percentage change = [(583 - 512) / 512] x 100
Subtract the new number by the original number
583 - 512 = 71
71 ÷ 512 = 0.138671875
0.138671875 x 100 = 13.87%