50.39% is the change from 516 to 776
Calculation steps:
[( 776 - 516 ) ÷ 516] x 100 = 50.39%
Formula
Percentage change = [(776 - 516) / 516] x 100
Subtract the new number by the original number
776 - 516 = 260
260 ÷ 516 = 0.5038759689922481
0.5038759689922481 x 100 = 50.39%