Formula for Determining Processing Fee

[MrFixitBeaches]

I'm trying to find a formula to automatically calculate the correct Venmo fee (1.9% + $.10) to apply to my invoices each time a client is billed. The fee I'm charging needs to match the amount I will be paying to Venmo at a later time to process the grand total of the invoice.

Invoice charges + fee = grand total

Grand total - fee = invoice charges

 

[MrFixitBeaches]

I may have found it in another discussion.

(Subtotal/.981)+.1 rounded may be the total I charge for the service and the fee later added by Venmo when cashing out.

 

[khansaheb]

I'm trying to find a formula to automatically calculate the correct Venmo fee (1.9% + $.10) to apply to my invoices each time a client is billed. The fee I'm charging needs to match the amount I will be paying to Venmo at a later time to process the grand total of the invoice.

Invoice charges + fee = grand total

Grand total - fee = invoice charges

Is Venmo fee based on

the 1.9% of the grandtotal, or,​

​

the 1.9% of the invoice charges, or,​