75.26% is the change from 388 to 680
Calculation steps:
[( 680 - 388 ) ÷ 388] x 100 = 75.26%
Formula
Percentage change = [(680 - 388) / 388] x 100
Subtract the new number by the original number
680 - 388 = 292
292 ÷ 388 = 0.7525773195876289
0.7525773195876289 x 100 = 75.26%