How would you find MCE? I added everything to 84. Then did 30/84 to get 35.7% but it says it's wrong. Please help. Thank you.

Exercise 13-32 Manufacturing Cycle Efficiency (LO 13-2) Waymouth Manufacturing operates a contract manufacturing plant located in Dublin, Ireland. The plant provides a variety of electronics products and components to consumer goods manufacturers around the world. Cycle time is a critical success factor for Waymouth, which has developed a number of measures of manufacturing speed. Waymouth has studied the matter and found that competitive contract manufacturers have manufacturing cycle times (MCE) of about 40%. When last calculated, Waymouth's MCE was 35%. Key measures from the recent month's production, averaged over all the jobs during that period, are as follows: Average Time (hours) Activity New product development Materials handling Order setup Machine maintenance Order scheduling Inspection of completed order Pack and move to storage or ship Manufacturing assembly Order taking and checking Receiving and stocking raw materials Inspection of raw materials at start of production NOWANIE WON Required: Determine the manufacturing cycle efficiency (MCE) for the recent month. (Round your answer to 1 decimal place.) Manufacturing cycle efficiency (MCE)