n the welding operations of a bicycle manufacturer, a bike frame has a flow time of about 13.75 hours. The time in the welding operation is spent as follows: 3 hours waiting in front of the cutting machine for the batch to start, 1 hour waiting for the setup of the machine, 2 hours waiting for the other pieces of the batch to go through cutting, 2 minutes at the cutting machine, and 3 hours waiting for the transfer to the next department.

Determine the exact flow time. What is the value-added percentage of the flow time?

Round your percentage answer to 4 decimal places.