The following information is collected about Mystery Ltd with some data missing:

Total sales revenue

?

Selling price

?

Operating income

$280 000

Total investment in assets

$2 750 000

Variable cost per unit

$4.50

Fixed costs for the year

$2 750 000

Number of units produced and sold

560 000

Required:

Please calculate the following:

(a) total sales revenue, (1 mark)

(b) selling price, (2 marks)

(c) rate of return on investment, and (2 marks)

(d) mark-up percentage on full cost (absorption costing) for this product. (2 marks)