http://ports.parks.ca.gov/pages/22922/files/worksheet-goldrushprices.pdf

Food prices during the Gold Rush and cost in today’s $

Food	Gold Rush Prices	Today’s Prices 	
	1851 	2007 	
Beef 	$10.00 	per lb. 	$279.81 	per lb. 	
Butter 	$20.00 	per lb. 	$559.63 	per lb. 	
Cheese 	$25.00 	per lb. 	$699.53 	per lb. 	
Coffee beans 	$0.15 	per lb. 	$4.20 	per lb. 	
Crackers, in tins 	$0.15 	per tin 	$4.20 	per box 	
Eggs 	$3.00 	each 	$83.94 	each 	
Flour 	$13.00 	per bag 	$363.76 	per bag 	
Oranges 	$0.15 	each 	$4.20 	each 	
Rice 	$8.00 	per lb. 	$223.85 	per lb. 	
Optional 	
Boots 	$6.00 	per pair 	$167.89 	per pair 	
Flannel shirts 	$1.50 	each 	$41.97 	each 	
Blanket 	$5.00 	each 	$139.91 	each 	
Shovel 	$36.00 	each 	$1007.33 	each 	

http://www.kidport.com/reflib/usahistory/calgoldrush/lifeof49er.htm

EARLY CALIFORNIA PRICES CURRENT.--Delano's "Life on the Plains and at the Diggings," gives the following as the prices paid at Lassen's Ranch, on September 17, 1849: 
Flour, per 100 pounds .......... $50.00 
Fresh beef, per 100 pounds .......... 35.00 
Pork, .......... 75.00 
Sugar, .......... 50.00 
Cheese, per pound .......... 1.50 

H. A. Harrison, in a letter to the "Baltimore Clipper," dated San Francisco, February 3, 1849, gives the following price-list: 
Beef, per quarter .......... $20.00 
Fresh Pork, per pound .......... .25 
Butter, per pound .......... 1.00 
Cheese, per pound .......... 1.00 
Ham, per pound .......... 1.00 
Flour, per barrel .......... 18.00 
Pork, per barrel .......... $35 to 40.00 
Coffee, per pound .......... .16 
Rice, per pound .......... .10 
Teas, per pound .......... .60 cents to 1.00 
Board, per week .......... 12.00 
Labor, per day .......... $6 to 10.00 
Wood, per cord .......... 20.00 
Brick, per thousand .......... $50 to 80.00 
Lumber, per thousand .......... 150.00 

William D. Wilson, writing to the "St. Joseph Valley Register," on February 21, 1849, gives the following schedule of prices at Sutter's Fort: 
Flour, per barrel .......... $30 to $40.00 
Salt Pork, per barrel .......... 110 to 150.00 
Salt Beef, .......... 45 to 75.00 
Molasses,.......... 30 to 40.00 
Salt Salmon .......... 40 to 50.00 
Beans, per pound .......... .20 
Potatoes, .......... .14 
Coffee, .......... 20 cents to .33 
Sugar, .......... 20 cents to .30 
Rice, .......... 20 cents to .30 
Boots, per pair .......... $20 to 25.00 
Shoes,.......... 3 to 12.00 
Blankets .......... 40 to 100.00 
Transportation by river from San Francisco to Sacramento, he says, was $6 per one hundred pounds. From Sacramento to the mines by team at the rate of $10 for every twenty-five miles. 

John H. Miller, writing to the "St. Joseph Valley Register," October 6, 1849, gives the following prices at Weberville, 60 miles from Sacramento: 
Wagons .......... $40 to $80.00 
Oxen, per yoke .......... 50 to 150.00 
Mules, each .......... 90 to 150.00 
Board, per meal, $1.50, or per week .......... 21.00 
Beef, per pound .......... 40 cents to .75 
Salt Pork, per pound .......... 40 cents to .75 
Flour, per pound .......... 25 cents to .30 
Sugar, per pound .......... 30 cents to .50 
Molasses, per gallon .......... $2 to 4.00 
Mining Cradles .......... $20 to 60.00 
Mining Pans .......... $4 to 8.00