Sub-module 6A, page 12
Here is a picture of my spread sheet. Note I had to plug in a value for the amount of contamination in the blueberries. On a real site we might analyze the berries directly or analyze the soil and use computations to estimate what the berries might be. Here I used 25 mg / kg, that would be 25 mg of PCP per kg of berries.
There was an apparent conflict between the formula for intake given in Exhibit 6-18 of RAGS A and the only exposure factor I was able to find in the Exposure Factor Handbook for blueberries. But not really. RAGS uses weight (kg) of contaminated food /meal times meals /year which gives the weight of contaminated food per time, and EFH uses weight (g) of contaminated food per time per kg body weight, by just multiply EFH times the typical kid's body weight and adjusting the units, you likewise get weight of contaminated food per time
The units can be confusing. Here is the intake equation with the units and how they cancel: