Use the table for the question below.

Year $0$

Year $1$

Year $2$

Year $3$

Revenues

$400000$

$400000$

$400000$

$-$Cost of goods sold

$-100000$

$-100000$

$-100000$

$-$Depreciation

$-100000$

$-100000$

$-100000$

$=$EBIT

$200000$

$200000$

$200000$

$-$Taxes $(30\%)$

$-60000$

$-60000$

$-60000$

$=$Profit after tax

$140000$

$140000$

$140000$

$+$Depreciation

$100000$

$100000$

$100000$

$-$Change in NOWC

$-20000$

$-20000$

$-20000$

$-$Capital expenditures

$-350000$

$=$Free cash flow

$-350000$

$220000$

$220000$

$220000$

Visby Rides, a limousine hire company, is considering buying some new luxury cars. After extensive research, they come up with the above estimates of free cash flow from this project. Visby learns that a competitor is thinking of offering similar services, thus reducing Visby's sales. By how much could sales fall before the net present value $($NPV$)$ was zero, given that the opportunity cost of capital is $12\%,$ and that cost of goods sold is $25\%$ of revenues?