Wilde Ltd produces a standard product which is sold at cost plus a 50% mark up. The business incurred fixed costs of

200,000

last year and total costs were

600,000.

The business sold 10,000 units during the year and was operating at full capacity. The business intends to expand its output by building a factory extension. This will increase annual fixed costs by

80,000

per year.

Calculate the increase in the break-even point (in units) as a result of the planned extension.