78.55% is the change from 387 to 691
Calculation steps:
[( 691 - 387 ) ÷ 387] x 100 = 78.55%
Formula
Percentage change = [(691 - 387) / 387] x 100
Subtract the new number by the original number
691 - 387 = 304
304 ÷ 387 = 0.7855297157622739
0.7855297157622739 x 100 = 78.55%