[daipham]

Thank you so much.
My English is not good so I didn’t read document well.
Please help me last question.
I follow this tutorial to custoom tooltip content.
https://canvasjs.com/docs/charts/chart-options/tooltip/content-formatter/
I got y value as well but I don’t know how to take the percent of y value . Does canvasjs provide it or I have to callculate it myself.
Best regards

[daipham]

Thank you so much, Indranil Deo.
But I want to add one more question.
When I calculate total of column, result will display inside column if the column is too high.
You can see my promblem is this example: https://canvasjs.com/docs/charts/chart-options/data/indexlabel/.
How can I make the result always on top and outside the column.
Best Regards.