Price Check II
A Follow-up Report on the Accuracy of Checkout Scanner Prices

Appendix C

DOLLAR AMOUNT OF UNDERCHARGES: SUMMARY OF RESULTS BY TYPE OF STORE

STORE TYPE
(# of Undercharges)
FOOD
(348)
DEPT
(379)
DRUG
(134)
MASS-
MDSE
(432)
HARD-
WARE
(273)
OTHER
(203)
TOTAL
(1,769)
Total $ Amount of Price Offered on Undercharge Items*

$1,375.70


$20,015.27


$816.07


$8,730.50


$6,791.31


$16,045.72


$53,774.57
Total $ Amount of Price Charged on Undercharge Items**

$1,121.67


$15,809.06


$648.37


$7,079.22


$5,647.58


$14,129.50


$44,435.40
Total $ Amount of Undercharges*** $254.03 $4,206.21 $167.70 $1,651.28 $1,143.73 $1,916.22 $9,339.17
Average $ Amount of Price Offered on Undercharge Item+

$3.95


$52.81


$6.09


$20.21


$24.88


$79.04


$30.40
Average $ Amount of Price Charged on Undercharge Item++

$3.22


$41.71


$4.84


$16.39


$20.69


$69.60


$25.12
Average $ Amount of Undercharges+++ $0.73 $11.10 $1.25 $3.82 $4.19 $9.44 $5.28

* The sum of the $ amount of the prices offered by retailer on the undercharge items
** The sum of the $ amount of the prices charged at checkout on the undercharge items
*** Total $ amount of undercharges = [Total $ amount of prices offered] - [Total $ amount of prices charged]
+ Average $ amount of price offered =[The sum of the $ amount of the prices offered] / [# of undercharges]
++ Average $ amount of the price charged = [The sum of the $ amount of the prices charged] / [# of undercharges]
+++ Average $ amount of undercharge = [Average $ amount of price offered] - [Average $ amount of price charged]


Last Modified: Monday, June 25, 2007