Total Lingo Inc. budgets to make 375,000 standard units of output during a budget period of 1,875,000 hours. Actual output during the period amounted to 450,000 units, which took 2,175,000 hours to produce. Calculate the efficiency ratio?

(ii) Kadje Limited had a staff complement of 1,875 on January 1, 2019. As a result of recession, 900 staff left during the year which is 525 more than expected. The excess was replaced immediately by the HR department. Calculate the labour turnover rate.