6.

During a year, Teri's monthly sales compensation ranged between $20,000 and $27,200 per month and units sold ranged between 1,000 and 1,800 units for those same months.

Required:

Use the high-low method to determine Teri's monthly salary and commission rate per unit sold and then calculate the total number of units sold in a year when Teri's total compensation amounted to $289,500.(Round your "Commission rate" to 2 decimal places.)

Monthly salary: $___________

Commission rate: _________ per unit

Total number of units sold: ______ units