Enter the values and I will generate a table of different monthly
payments based on a $1,000 loan (i.e. for each $1,000 borrowed).
Size defines the number of columns (term) or rows (rate) in the table.
For 5 to 40 years, using 8 columns means every 5 years, for 5% to 8%, 25 rows
will show each 1/8% increment.