-96.65% is the change from 388 to 13
Calculation steps:
[( 13 - 388 ) ÷ 388] x 100 = -96.65%
Formula
Percentage change = [(13 - 388) / 388] x 100
Subtract the new number by the original number
13 - 388 = -375
-375 ÷ 388 = -0.9664948453608248
-0.9664948453608248 x 100 = -96.65%