Selling price $220 per unit
Variable production costs $90 per unit produced
Variable selling and admin. expenses $25 per unit sold
Fixed production costs $600,000
Fixed selling and admin. expenses $400,000
Units produced 12,000 units
Units sold 11,500 units

There were no beginning inventories.

Required:
Compute Arrow's operating income for the month of May using the variable-costing method.