The following information regarding Tekla LTD Maximum lead time Minimum lead time Maximum usage Minimum usage Purchase price per unit Average annual storage cost per unit Cost to place an order Prime interest rate Production weeks per annum Stock financing is by overdraft NB: (assume 4 weeks are equivalent to 1 month) 6 weeks 2 weeks 8000 units per month 4000 units per month N$50.00 NS 2.20 N$120.00 11.50% 48 Required: a. b. C. d. e. Re-order stock level Minimum stock level Economic order quantity Average stock level Number of orders per annum Order cost per annum