Convert Varchar with Exponent to Decimal Data type

Question

I have column Amount with 10,000 records and its look like this.

1.24E4

27.27E1

3.25E2

and etc.

Now I need to update the column to make this result

12400

272.7

325

I need to know how to convert and update the column from varchar to decimal.

Take note that my Column Amount is in Varchar Data type.

Answer 1

select convert(float, '1.24E4')
select convert(float, '27.27E1')
select convert(float, '3.25E2')

Answer 2

Simply update with a cast to FLOAT:

UPDATE YOUR_TABLE
SET YOUR_COLUMN = CAST(YOUR_COLUMN AS FLOAT)
WHERE....your condition if there