A given inventory item has a per$-$year holding cost of $$100.$ One method of shipping this item is four days faster than another, but it is $$3\mathrm{.}30$ more per unit. Using the slower method would be $\_\_\_\_\_\_\_\_\_\_$ overall than using the faster method.

$$1\mathrm{.}61$ cheaper

Correct Answer

$$2\mathrm{.}20$ cheaper

$$4\mathrm{.}90$ cheaper

Incorrect Response

$$1\mathrm{.}61$ more expensive

$$2\mathrm{.}20$ more expensive

$$4\mathrm{.}90$ more expensive