Shown here is an income statement in the traditional format for a firm with a sales volume of 7,700 units. Cost formulas also are shown: Required: a. Prepare an income statement in the contribution margin format. b. Calculate the contribution margin per unit and the contribution margin ratio. c. Calculate the firm's operating income (or loss) if the volume changed from 7,700 units to 1. 11,550 units. 2. 3,850 units. d. Refer to your answer to part a for total revenues of $34,100. Calculate the firm's operating income (or loss) if unit selling price and varlable expenses per unit do not change and total revenues 1. Increase by $15,000. 2. Decrease by $2,000. Complete this question by entering your answers in the tabs below. Required: o. Prepare an income statement in the contribution margin format. b. Calculate the contribution margin per unit and the contribution margin ratio. c. Calculate the firm's operating income (or loss) if the volume changed from 7.700 units to 1. 11,550 units. 2. 3.850 units. d. Refer to your answer to part a for total revenues of $34,100. Calculate the firm's operating licome (or loss) if unit selling price and variable expenses per unit do not change and total revenues 1. Increase by $15,000 2. Decrease by $2.000. Prepare an income statement in the contribution margin format. Complete this question by entering your answers in the tabs below. Calculate the contribution margin per unit and the contribution margin ratio. Note: Do not round intermediate calculations. Round "contribution margin per c. Calculate the firi 2. 3,850 units. d. Refer to your answer to part a for total revenues of $34,10 variable expenses per unit do not change and total revent 1. increase by $15,000 2. Decrease by $2,000. Complete this question by entering your answers in the Calculate the firm's operating income (or loss) if the volume cl Note: Do not round intermediate calculations. 1. Increase by $15,000. 2. Decrease by $2,000. Complete this question by entering your answers in the tabs below. Calculate the firm's operating income (or loss) if the volume changed from 7,700 units to 3,850 units. Refer to your answer to part a for total revenues of $34,100. Note: Do not round intermediate calculations. 2. Decrease by $2,000. Complete this question by entering your answers in the tabs below. Refer to your answer to part a for total revenues of $34,100. Calculate the firm's operating income (or loss) if unit selling price and variable expenses per unit do not change and total revenues increase by $15,000. Note: Round intermediate calculations to 2 decimal places. 2. 3,850 units. d. Refer to your answerto part a for total revenues of $34,100. Calculate the firm's operating income (or loss) if unit seling price variable expenses per unit do not change and total revenues 1. Increase by $15,000. 2. Decrease by $2,000 Complete this question by entering your answers in the tabs below. Refer to your answer to part a for total revenues of $34,100. Calculate the firm's operating income (or loss) if unit seiling price and variable expenses per unit do not change and total revenues decrease by $2.000. Note: Round intermediate calculations to 2 decimal places