40.38% is the change from 520 to 730
Calculation steps:
[( 730 - 520 ) ÷ 520] x 100 = 40.38%
Formula
Percentage change = [(730 - 520) / 520] x 100
Subtract the new number by the original number
730 - 520 = 210
210 ÷ 520 = 0.40384615384615385
0.40384615384615385 x 100 = 40.38%