Send this question to an expert Up$,$ Up$,$ and Away is a producer of kites and wind socks. Relevant data on the bottleneck operation in the shop for the upcoming fiscal year are given in the following table:

The shop works two shifts per day, $8$ hours per shift, $190$ days per year. Currently, the company operates four machines, and desires a $25$ percent capacity cushion. How many

machines should be purchased to meet the upcoming year's demand without resorting to any short$-$term capacity solutions?

The number of additional machines required is

$($Enter your response rounded up to the next whole number.$)$