6 of 15 Refresh Ltd manufactures a single product, the energizer, from a single raw material. Each unit of energizer requires 3 metres of this raw material at a cost of 1.50 per metre. Budgeted data for next year are as follows: Sales Price per unit () 141 Sales Revenue () 791701 Opening stock of finished goods (units) 2000 Closing stock of finished goods (units) 1500 The amount of materials (in s) required for production is? III