Place it right after the wrong total appears in your edit, then follow it with Awkward Crickets for the pause that follows. For a bigger reaction chain, add the Shocking Sound Effect Button after that, keeping this clip first so the correction drives the sequence.
À propos de ce son
This is a two-second French voice clip of someone shouting in frustration that 7000 is three zeros, with an exasperated growl before the correction. It feels annoyed, pedantic and funny at once, the sound of catching an obvious maths mistake and not being able to let it slide in the moment.