Forecast demand for cable TV installation is shown in the table below. The current backlog is $200$ orders.

Calculate the monthly installations for level production planning strategy if the backlog is to be reduced by $50\%,$

What is the backlog at the end of each month?

$\backslash$table$[[$Cable TV Installations$],[$Month$,$Jan,Feb,Mar,Apr,May,$],[$Workdays$,21,19,19,20,21,],[$Forecast$,50,60,50,70,70,],[$Production$,$type your a$,$type your :$,$type your :$,$type your :$,$type your ans,$],[,,,,,,]]$