The Wall Clock Company sells a particular clock for $40. The variable costs are $15 per clock and the breakeven point is 260 clocks. The company expects to sell 310 clocks this year. If the company actually sells 460 clocks, what effect would the sale of additional 150 clocks have on operating income? Explain your answer. The sale of an additional 150 clocks would operating income by the amount of The total effect would amount to