Tooltip question on 100% Stacked Column chart

Hi,

I'm having trouble with the Tooltip in the 100% Stacked Column chart.  It's displaying my % figure with 2 decimal places. (73.19% in the example shown.)  Our company likes to show this data with only 1 decimal (e.g. the 73.2% figure as shown in the grey column on the left.)

Can I either:

Turn OFF the % in the tooltip somehow? (I want the tooltip to still be there with the $$$ figure, so don't want to turn it off completely.)

OR

Change the Tooltip % to only 1 decimal place?

I know I can change the % on my column charge to be 2 places so they match, but I really only wanted one decimal, and it's annoying me that they don't match.  Plus the 1 decimal place example is rounded up to 73.2%, but still shows as 73.19% in the tooltip, which looks messy.

Thanks in advance