Bug - Calculations for budget amounts not calculating correctly

The app is not calculating correclty. i took these screenshots to calculate manually. The app is calculating these amounts as a 6358.27 (amount over budget) for a total of 8358.27 (total spent). Calculating manually i double checked and the correct amounts are:

Total spent: MX$8,291.60
Budget: MX$2,000.00
Amount over budget: MX$6,291.60

This is happening on several of my budgets and i also double checked that there were no other planned expenses in those categories and there are non. Please let me know what the problem is, i like your app but this makes one loose confidence in the reporting.