slider control number not showing decimal increase

Hi,

Any help is welcome on making my decimal work in the increase.

I have a text (number) with slider control so it is animated to go from 1.0 to 10.0.

I have used the round expression with 1 decimal.

expression used: Math.round(effect("Slider Control")("Slider")).toFixed(1)

Problem is: it shows the decimal structure but the decimal is only showing 0 (zero), not animating.

wanted:

1.1

1.2

1.3

etc.

2.0

2.1

currently

1.0

2.0