The Minnesota Metal Forming Company has just invested $$500,000$ of fixed capital in a manufacturing process that is estimated to generate an after$-$tax annual cash flow of $$200,000$ in each of the next five years. At the end of year $5,$ no further market for the product and no salvage value for the manufacturing process is expected. If a manufacturing problem delays the start$-$up of the plant for one year $($leaving only four years of process life$),$ what additional after$-$tax cash flow will be needed to maintain the same internal rate of return as would be experienced if no delay occurred?