Using the data below, what would be the variable cost per unit when using the high-low method to distinguish between fixed and variable costs?

Reporting Period (Month)	Total Costs	Machine Hours
January	$278,000	1,550
February	295,000	1,570
March	266,000	1,115
April	290,000	1,700
May	262,000	1,110

Group of answer choices

$47.46

$63.74

$71.74

$41.03

Please show work,

Thank you.