not showing correct volume on icon hover

[Bazixv13]

Summary

the volume is not shown correctly while hovering over the ear trumpet icon with in the system tray

Steps to reproduce

When you hover over the Ear Trumpet icon in the system tray and increase the volume using the scrollbar (twice), the on-hover text displays an incorrect volume level—it's either two steps too quiet or two steps too loud than the actual volume

EarTrumpet version

2.3.0.0

Windows version

10.0.19045.4291

Additional information