76.55% is the change from 388 to 685
Calculation steps:
[( 685 - 388 ) ÷ 388] x 100 = 76.55%
Formula
Percentage change = [(685 - 388) / 388] x 100
Subtract the new number by the original number
685 - 388 = 297
297 ÷ 388 = 0.7654639175257731
0.7654639175257731 x 100 = 76.55%