Description:
Styles' font size values converted from point into percent or from percent into point do do match each others.

Steps to Reproduce:
1. Open both ODT documents with no content Untitled 1_point, Untitled 1_percent. Only style applied is Heading 1;
2. In in both show Sidebar (Ctrl F5) => Styles => Applied Styles; Right-click Heading 1 an select Modify; Open Font tab;
3. In Untitled 1_percent, under Font tab, Size:'s field, current value is '130%' which is matched by '18.2' points in the Writer tool bar. Replace '130%' by 'pt', click Apply.
4. In Untitled 1_point, under Font tab, Size:'s field, current value is '24 pt' which is matched by '24' points in the Writer tool bar. Replace '24 pt' by '%', click Apply, then OK.


Actual Results:
3. – value '130%' is converted into '13 pt'.
4. – value '24 pt' is converted into '240%', which is itself matched by '33.5' pt in the Writer tool bar.

Expected Results:
3. – value '130%' converted into value '18.2 pt'.
4. – value '24 pt' converted into value '172%' – (240 %/33.5 pt)*24 pt = 171.9408 %, rounded to 172 % – matching the current value in point.


Reproducible: Always


User Profile Reset: Yes



Additional Info:
Version: 6.1.2.1; Build ID: 6.1.2.1-4.fc29; CPU threads: 4; OS: Linux 4.19; UI render: default; VCL: gtk3; Locale: en-GB (en_GB.UTF-8); Calc: group threaded