$5\mathrm{.}1.$ Examine the information provided below and answer the following questions. INFORMATION Royal Bank $($RB$)$ employs three loan officers, each working eight hours per day and processing an average of seven loans per day. The bank$$s daily payroll cost for all the officers is R$2400,$ and the daily overhead expense is R$1000.$ The bank has recently acquired new advanced computer software, which is expected to increase each officer's loan processing capacity to twelve loans per day. However, the overhead expense will rise to R$1200,$ and there will be an additional software license cost of R$20$ per officer per day.

REQUIRED: $5\mathrm{.}1\mathrm{.}1.$ Calculate the labour productivity per labour$-$hour before and after implementation of the new computer software. Show all calculations and round off answers to three decimal places.