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To create and copy a SUMIF function to calculate total earnings by branch office, follow these steps:Select cell E18.Type the following formula:=SUMIF($D$5:$D$14,C18,$G$5:$G$14)This formula uses the SUMIF function to sum the values in cells G5:G14 that meet the criteria in cell C18, which is the branch office.Press Enter to calculate the result.With cell E18 still selected, click on the Format Painter button in the Home tab of the ribbon.Select cells E19:E20 to copy the formula without formatting.Release the mouse button to copy the formula to the selected cells.Select cells E18:E21.Click on the Currency button in the Number group of the Home tab of the ribbon to format the cells as currency....