The total sales made by a salesperson was $25,000 after 3 months and $68,000 after 23 months. Predict the total sales after 42 months.

Answer 1

25,000 / 3 = $8,333.33 per month

68,000 / 23 = $2,956.52 per month

There is too much difference between these monthly figures to attempt to predict sales after 42 months.