-20.21% is the change from 386 to 308
Calculation steps:
[( 308 - 386 ) ÷ 386] x 100 = -20.21%
Formula
Percentage change = [(308 - 386) / 386] x 100
Subtract the new number by the original number
308 - 386 = -78
-78 ÷ 386 = -0.20207253886010362
-0.20207253886010362 x 100 = -20.21%