1. Calculator

   High-Low Method

   The manufacturing costs of Alex Industries for three months of the year are provided below.

   	Total Costs		Production
   January	$428,040		2,255 units
   February	665,840		6,355
   March	568,820		4,220

   Using the high-low method, determine (a) the variable cost per unit and (b) the total fixed cost. Round all answers to the nearest whole dollar.

   a. Variable cost per unit	$
   b. Total fixed cost	$

   Contribution Margin

   Sally Company sells 22,000 units at $18 per unit. Variable costs are $10.8 per unit, and fixed costs are $63,400.

   Determine (a) the contribution margin ratio, (b) the unit contribution margin, and (c) income from operations.

   a. Contribution margin ratio (Enter as a whole number.)		%
   b. Unit contribution margin (Round to the nearest cent.)	$	per unit
   c. Income from operations	$