Fuel dispenser can also automatically transfer rounding even if a penny. For example, the driver has cost149 yuan 9 jiao nine penny and ask to transfer rounding, if the worker press the  shortcut key, fuel dispenser can also automatically transfer150 yuan. This greatly improves  customer satisfaction. According to estimating, minimum rounding function can make worker save invalid time for100 minutes every day.

According to estimating, service stations can increase around 5% sale during rush hour, all the profit can increase 2% or more. Each service station can increase profit 40000 yuan if its profit is 2000 thousands each year.