A business manufactures tires. The average demand for the business is 645 tires/week and the maximum demand is 670 tires/week. To manufacture one tire 3 kilos of rubber is required as raw material. So, the production department of the business requires a maximum of 2,010 (= 670 × 3) kilos of rubber per week. If the lead time to get rubber from the supplier is 1.5 weeks then re-order level would be?