Get the total result based on sum of column 2 / sum of column 1

Shanmugavel

I wanted to get the result based on Col2/Col1 result, expected result here is .3545, when we do average in last column i'm getting .3788 (1.8942/5). Is there any way to achieve the expected result.

Jones01

@Shanmugavel

Use

sum(`col2`)/sum(`col1`)