You won't always want to show a final total for your proposals. If this is the case, there are two ways to do this.
How to exclude a total from a pricing section.
To exclude a total from an individual pricing section, make sure that the Include Section Total checkbox within the pricing section is unchecked.
How to exclude a final total from your proposal.
While you are in proposal edit mode, click the Settings icon in the top right and then make sure that the Exclude Final Total option is checked.