Sorry to be reporting a bug so soon after the feature has been released but…
I was playing around with the feature and hit Done which saved an overall spend target of £800.
Subsequently I went through and actually set targets for category which actually came out as £710 but hitting Done still leaves me with a overall spend figure of £800.
I even tried adjusting the overall spend figure and hitting Done but that does not seem to work either.
Any way I can change this overall figure?