On January 1, 1979, the Robert Pratt family had \(\$ 1,200\) in its checking account and \(\$ 5,000\) in a savings account. The unpaid balance on the mortgage on their home totaled \(\$ 20,000\), whereas unpaid bills relating to purchases during December 1978 amounted to \(\$ 1,000\). An index of the general price level on January 1, 1979, was 150. During 1979, the following transactions occurred (general price index is shown in parentheses):

(1) Robert Pratt's take-home salary during 1979 was \(\$ 15,000\) (average GPI \(=160\) ).

(2) The unpaid bills of \(\$ 1,000\) on January 1,1979 , were paid (GPI \(=152\) ).

(3) Principal repayments of \(\$ 2,500\) were made during 1979 on the home mortgage loan (average GPI \(=160\) ).

(4) Food, clothing, interest, and other costs incurred by the family during 1979 totaled \(\$ 10,100\), of which \(\$ 9,300\) were paid in cash (average GPI \(=160\) ).

(5) Interest earned and added to the savings account totaled \(\$ 250\) (average GPI \(=160\) ).

(6) In addition to the interest earned in (5), \(\$ 2,500\) was transferred from the checking to the savings account during \(1979(\mathrm{GPI}=158)\). The general price index on December 31,1979 . is 170 .

Using the two-T-account approach, determine the monetary gain or loss for the family during 1979. Round conversion factors used to two decimal places (170/150 \(=1.13\) ).