48.36% is the change from 519 to 770
Calculation steps:
[( 770 - 519 ) ÷ 519] x 100 = 48.36%
Formula
Percentage change = [(770 - 519) / 519] x 100
Subtract the new number by the original number
770 - 519 = 251
251 ÷ 519 = 0.4836223506743738
0.4836223506743738 x 100 = 48.36%