5. For the last 2 years, the Homes-r-US company has experienced a fixed cost of $850,000 per year and an (r - v) value of $1.25 per unit. International competition has become severe enough that some financial changes must be made to keep market share at the current level. Perform a graphical analysis, using Excel, that estimates the effect on the breakeven point if the difference between revenue and variable cost per unit increases somewhere between 1% and 15% of its current value. If fixed costs and revenue per unit remain at their current values, what must change to make the breakeven point go down?