Answer:
This is an percentage change question, by any chance you have a maths textbook, search for units that contains the topic: Percentage Change/Percentage. Now, let's get solving! :D
Explanation:
First of all, you multiply 7% with $778,095 which gives: $54,466.65 (This is your commission/Answer)
Most currency questions use 1 decimal place, so I recommend you to use this answer: $54,466.7
Stay safe and Merry Christmas! :)