Question 1087486
The two equations are
$300000(1+(0.0495/12)^60, dividing the interest by 12 and having 60 compoundings.
$300000(1+0.073)^5
They are equal to $384,050.25 and $426697.27
That sum is $810,747.52.
On the calculator, start with the 1 + per cent interest. Raise that to the appropriate power without rounding, then multiply by $300,000, rounding only at the end.