You bought the product as 2.5 gallon jugs, you want the Mixmate to match. There are 2 different ways to solve this discrepancy.

1. Check the scale calibration of the inductor found HERE

2. MOST COMMON SOLUTION: Adjust the density of the product by the percentage that it is off. For instance you have a product with an entered density of 8.35 pounds/gallon and when you pour in a 2.5 gallon jug, the Mixmate shows 2.35 gallons. To fix this, you take 2.35/2.5*8.35 to get 7.849 as the new density to enter for that product.