average, sum, porcentage

SUM
This function helps you add different amounts located in the cells.
=sum(a1:a2)
AVERAGE
This function helps you find the value of a set of numbers.
=average(a2:a10)
PERCENTAGE
This function helps you find the percentage of a certain number located on a tab.
=350*15% =350*15/100 =350*.15

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