Zodiac Sound Company manufactures audio systems, both made$-$to$-$order and mass$-$produced systems that are typically sold to large$-$scale manufacturers of electronics equipment. For competitive reasons, the company is trying to increase its manufacturing cycle efficiency $($MCE$)$ measure. As a strategy for improving its MCE performance, the company is considering a switch to JIT manufacturing. While the company managers have a fairly good feel for the costs of implementing JIT, they are unsure about the benefits of such a move, both in financial and nonfinancial terms. To help inform the ultimate decision regarding a move to a JIT system, you$$ve been asked to provide some input. Fortunately, you$$ve recently attended a continuing professional education $($CPE$)$ workshop on the costs and benefits of moving to JIT and therefore feel comfortable responding to management$$s request.

Required:

$3.$ Given the estimated data below, calculate the MCE for both the current manufacturing process and the proposed process after implementing JIT:

Activity $-$ Current System $-$ After JIT Implementation

Storage $-60$ minutes $-20$ minutes

Inspection $-30$ minutes $-15$ minutes

Moving $-45$ minutes $-15$ minutes

Processing $-60$ minutes $-30$ minutes

$4.$ What is the percentage change in average MCE anticipated under JIT?

$($For all requirements, do not round intermediate calculations and round your final answers to $2$ decimal places $($i$.$e$.,\mathrm{.}1234=12\mathrm{.}34\%).)$