APPENDIX C
 PRICE RELATIVES


 Price relatives were calculated by dividing each monthly price by
the arithmetic average of that product during a base period. The base
period selected was the 12 months of January to December, 1967, inclusive.
Thus, for corn (Table 10) the prices for the 12 months, January through
December, 1967, were added, and the total divided by 12 to determine the
average or base price of 130.0 cents per bushel. The price of corn each
month was then divided by the base price to obtain the relative price
(Table 42). The purpose of price relatives is to facilitate comparisons
between different commodities and different periods of time.