Answer: -33.3%
Step-by-step explanation: To find the percent change, you can use the formula:
Percent Change = ((New Value - Old Value) / Old Value) * 100
In this case, the old value is 6 ounces and the new value is 4 ounces.
Plug these values into the formula:
Percent Change = ((4 - 6) / 6) * 100
Simplifying the equation:
Percent Change = (-2 / 6) * 100
Percent Change = -0.333 * 100
Percent Change = -33.3%
Therefore, the percent change is -33.3%.