The information provided on the first two sheets (01 Input and 02 Input), together with the new input on this sheet (Monthly Payments Sheet) produces further detailed outputs and a chart.

Inputs
The input, Monthly Payments affects directly all the output variables, facilitating the selection of the most convenient technology.

Outputs
This sheet gives, for a specific monthly payment, the variable floor areas achievable for each technology, the net house cost, the gross house cost (including interest), the minimum monthly income per family required to pay off this cost and the percentage of families from the surveyed group who can afford this cost. These values vary according to the percentage of family income dedicated to repayments .