Currently I am calculating PBG in my pre-brewday estimation section by using the following calculation:

**((Grain points total*efficiency)+(points of sugar))/Pre-boil volume**

This equation is yielding expected results given the other equation in my sheet. It's when I attempt to calculate efficiency in my actuals (brew day values) section that I hit a snag:

*I had calculated the points contribution of the sugars separate from the grains because thier contribution is 100% efficient, yet*I am effectively getting a lower efficiency in my actuals section that the estimation section.

**actual**efficiency is the quotient of measured PBG and grain potential.I know its a simple fix but if anyone can chime in on this it would be much appreciated.