As Muli provide consolidated information on many reports, adopt a common display format for Accounts Payable & Account Receivable transactions across all reports. This included constant colour for the same information element.
There is a convention that is being largely followed:
Black indicates positive value
Red indicates a negative number(bad).
Blue negative values are good
Cheque / payment Cyan
GST in yellow
Muli standarises information presentation assisting the user to becoming proficient.