12.88% is the change from 520 to 587
Calculation steps:
[( 587 - 520 ) ÷ 520] x 100 = 12.88%
Formula
Percentage change = [(587 - 520) / 520] x 100
Subtract the new number by the original number
587 - 520 = 67
67 ÷ 520 = 0.12884615384615383
0.12884615384615383 x 100 = 12.88%