28.65% is the change from 520 to 669
Calculation steps:
[( 669 - 520 ) ÷ 520] x 100 = 28.65%
Formula
Percentage change = [(669 - 520) / 520] x 100
Subtract the new number by the original number
669 - 520 = 149
149 ÷ 520 = 0.2865384615384615
0.2865384615384615 x 100 = 28.65%