Gael’s Glass sells through three channels: phone, online, and store. These channels generate the following margins: 50%,

[answerhappygod]

Gael’s Glass sells
through three channels: phone, online, and store. These channels
generate the following margins: 50%, 40%, and 30%, respectively.
When Gael’s wife asks what his average margin is, he initially
calculates a simple margin and says it’s 40%. Gael’s wife
investigates further, however, and learns that her husband answered
too quickly. Gael’s company sells a total of 10 units. It sells 1
unit by phone at a 50% margin, 4 units online at a 40% margin, and
5 units in the store at a 30% margin. Calculate the company’s
average channel margin in percentage terms.