Total a column with SUM
20%
SUM
=B2+B3+B4+B5+B6+B7 works, and it is the wrong answer. It takes longer to type, it is easy to miss a cell, and it tells you nothing when you read it back.
=SUM(B2:B7) says what it means: total this range. A function is a name, a bracket, and what it should work on.
In B9, use SUM to total the six weekly figures in B2 to B7.
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