beginning programmer needs help with a structures program!

i need help with a program that calculates average household income, and lists the identification number and income of each household whose income exceeds the average. Also, determine the percentage of households below the poverty level using the formula P=$7500.00+$950.00x(m-2), where m is the number of members of each household. No more that 25 households were surveyed. This program uses structures. I have no idea what i am doing on this one, so any help would be appreciated, thank you.