Normal Formatting after subsctipt in Text Wave

I need to call out the percentage of chemical compounds in a pie chart, along with the compound name. The compounds have subscripts. I have no problem making the subscripts work, but I can't return the formatting to normal with the \M tag. For example, I have "NO\B3\M: 15.2559%" in the text wave, but in the annotation, everything after the \B is subscripted.

What's the fix here?

You must use the \[0 to store the starting font configuration settings into the zeroth space.

''\[0NO\B3\M: ..."