Frolic Co., Ltd. shows the sales budget and production budget for each month in Q3 as follows: July Sales 70,000 Units Produced 73,250 Units August Sold 83,000 Units Produced 84,750 Units September Total Production 91,750 Units [The company has inventories on hand as of date. On July 1, the amount of 17,500 units and a policy to keep inventories each month equal to 25% of the number of units sold in the following month. In October, the company expects to sell 97,000 units, find the number of units sold in September.