99.49% is the change from 389 to 776
Calculation steps:
[( 776 - 389 ) ÷ 389] x 100 = 99.49%
Formula
Percentage change = [(776 - 389) / 389] x 100
Subtract the new number by the original number
776 - 389 = 387
387 ÷ 389 = 0.9948586118251928
0.9948586118251928 x 100 = 99.49%