45.58% is the change from 520 to 757
Calculation steps:
[( 757 - 520 ) ÷ 520] x 100 = 45.58%
Formula
Percentage change = [(757 - 520) / 520] x 100
Subtract the new number by the original number
757 - 520 = 237
237 ÷ 520 = 0.45576923076923076
0.45576923076923076 x 100 = 45.58%