Charles Lackey operates a bakery in Idaho Falls, Idaho. Because of its excellent product and excellent location, demand has increased by $55\%$ in the last year. On far t customers have not been able to purchase the bread of their choice. Because of the size of the store, no new ovens can be added. At a staff meeting, one employee sug ovens differently so that more loaves of bread can be baked at one time. This new process will require that the ovens be loaded by hand, requiring additional manpower. changed. $($Productivity remains the same.$)($Hint: Each worker works $160$ hours per month.$)$

If the bakery currently makes $1,500$ loaves per month with a labor productivity of $2\mathrm{.}344$ loaves per labor hour, then Lackey will need to add worker$($s$)$ to meet the incr each worker works $160$ hours per month and round your response up to the next whole number$).$