Funky percentage on investment graph week view

[Stourdave (Dave)]

Issue: When viewing investment account on week view, the percentage up/down appears incorrectly. Image attached.

Details to reproduce: open investment account page, go to week view
OS: Android v15
Device: Samsung Z Fold 6
App Version: 6.44.0

Screenshots:

[caribo]

The scaling could be improved too as the Y axis goes from £2.8k to £2.8k … not very meaningful.