A small lesson.
A clearer next step.

A lower package price does not always mean a better deal. Unit price compares the cost of one item, one ounce, or another shared unit.

Imagine two rice bags. Bag A has three kilograms for six dollars. Bag B has five kilograms for nine dollars. These are made up prices.

Divide cost by kilograms for each bag. Bag A costs six divided by three: two dollars per kilogram.

Bag B costs nine divided by five: one dollar eighty per kilogram. Both answers use the same unit, so you can compare them fairly.

Bag B has the lower unit price. It costs more at checkout, so consider whether you need that much and can afford the larger package.

Watch the units. Do not compare dollars per ounce with dollars per pound until you convert one of them.

Try it: four notebooks cost ten dollars. What is one notebook’s unit price? Pause. Ten divided by four is two dollars fifty per notebook.