-49.48% is the change from 768 to 388
Calculation steps:
[( 388 - 768 ) ÷ 768] x 100 = -49.48%
Formula
Percentage change = [(388 - 768) / 768] x 100
Subtract the new number by the original number
388 - 768 = -380
-380 ÷ 768 = -0.4947916666666667
-0.4947916666666667 x 100 = -49.48%