Challenge #308: Size it up

[mithily]

it says #279 

[bwwhipple21]

My solution

[aiahwieder]

Not sure why the percentages don't match on calculation -- the inputs match entirely otherwise.

[Arran]

Awesome

[cmoussa]

[robert-headington]

#308

[KLTerrell]

My result for the percentage of each size is slightly different because I divided by the cleaned total (1839) instead of the original total (1850).

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[BransonJamesFarley]

Had fun messing around with a more dynamic version, incase more columns were added and no nulls were still required. 

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