Penny Rounding Rule For OCONUS Commissaries Commissaries located in OCONUS with exception of Guam, do not tender pennies. Cashiers have had to manually calculate to the nearest nickel/dime, automated checkouts are configured to accept tenders to the nearest nickel/dime. Some examples of DeCA’s rounding rule: The cash back issue applies to all tenders. A general rule: 0-2 cents 3-5 cents 6-7 cents 8-10 cents no we we we change given to customer give 5 cents to customer give 5 cents to customer give 10 cents to customer Another example: * For $ 0.20; leave as is * For $ 0.21; round down to .20 * For $ 0.22; round down to .20 * For $ 0.23; round up to .25 * For $ 0.24; round up to .25 * For $ 0.25; leave as is * For $ 0.26; round down to .25 * For $ 0.27; round down to .25 * For $ 0.28; round up to .30 * For $ 0.29; round up to .30 * For $ 0.30; leave as is