Interviewer instructions
The average price is obtained by dividing total price to total amount. For example 4700tog:6kg=783.3tog. The average price is important to pinpoint any mistakes in monthly totals /6kg or 4700tog/. For example if the household made mistakes in decimal places and recorded the purchase of 1 kg of meat for 10000 togrogs then the total amount spent would be 13700 togrogs (2200+10000+1500=13700) and the average price would be 2283.3 togrogs (13700:6=2283.3). But on the other hand you /enumerator/ know that there is no meat sold at this price therefore you have to check again the data. Wrong adding up also may cause the mistake.