book Maths Puzzle Numerical Ability

Hi, I want to work out a possible profit percentage. Total outlay is £12092.07 and total Return is £13824. Profit = £1731.93

With Regards,

Oliver Davies.

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My question is:
8.062 rounded to the nearest thousandth.
would that be 8.1?
Thanks
7y2 (4y4 + y3 + 7)