The percentage of the cost of the phones Annel earns in commission is 5%. If he sells $640 worth, the amount he earns as percentage will be $32.
<h3>How can the amount Annel earns be found?</h3>
The amount in commission Annel earns when he sells the phone worth $180 = $9
The percentage of the amount sold, Annel earns as commission is therefore;

The amount earned as commission if he sells $640 worth of phones is found as follows;
Amount earned = 5% × 640 = 32
- The amount Annel earns in commission if he sells $640 worth of phones = $32
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