economical?

This application checks which goods is economical.
How much is it for 1 amount that application calculates?
Compare up to five goods can be displayed on one screen.
It tells which goods are the most economical.

For example,
　①60g,3$ item
　②65g,3.2$ item
　③70g,3.8$ item

Calculating
①3$ / 60g = 0.05$/g
②3.2$ / 65g = 0.049$/g
③3.8$ / 70g = 0.054$/g

　② is the most economical.

Please use for shopping.

Usage has indicated to HP（Japanese only).