77.84% is the change from 388 to 690
Calculation steps:
[( 690 - 388 ) ÷ 388] x 100 = 77.84%
Formula
Percentage change = [(690 - 388) / 388] x 100
Subtract the new number by the original number
690 - 388 = 302
302 ÷ 388 = 0.7783505154639175
0.7783505154639175 x 100 = 77.84%