The following information relates to Securitie Ltd. 2019 2020 Receivables turnover period 45 days 30 days Inventory turnover period 92 days 122 days Profit margin 7% 10% Required (a) State whether each of the above ratios/turnover period has improved or worsened during the period 2019 - 2020:(a) Receivables turnover period Improved Inventory turnover period Worsened Profit margin Improved