Asana Custom Fields Summarizer
Asana Custom Fields Summarizer adds SUM fields on sections and column field headers for projects with numerical custom field columns. The extension updates in real-time, so when any changes you make to the custom field values will bubble up to calculate new aggregated sums! If you're a fan of the SUM function in Excel, this extension is made for you. Easily toggle the extension on and off by clicking on the extension's browser button (to the right of the browser URL bar).