Answer: There is 61.9% decrease in the value from 126 ounces to 48 ounces.
Explanation:
Original value=126 ounces
New value = 48 ounces
Difference = 126-48 = 78 ounces
So, Percentage of decrease value is given by

So , there is 61.9% decrease in the value from 126 ounces to 48 ounces.