You calculated the gross profit margin wrong !
in The Complete Data Visualization Course with Python, R, Tableau, and Excel / Dashboard in Tableau - Bar and Line Combination Chart
Supposedly (NetSales - cogs) / NetSales
but you put addition instead of subtraction
NetSales + cogs) / NetSales
1 answers ( 0 marked as helpful)
thanks for reaching out! In the data, the cogs are written as negative numbers, that's why adding them works.