How to Increase target time with 10%

[Jacob]

Hi All,

I want to increase my target field with 10%

Example

Average Time (AM)	Target Time	Target Time  +  10%
05:10:00	08:00:20	Target Time  +  10%
06:10:00	09:00:20	Target Time  +  10%
07:10:00	10:00:20	Target Time  +  10%
08:10:00	11:00:20	Target Time  +  10%
09:10:00	12:00:20	Target Time  +  10%
10:10:00	13:00:20	Target Time  +  10%
11:10:00	14:00:20	Target Time  +  10%

In target time i want to add 10% time.

How can i do ?plz help 

[MindaugasBacius]

The expression should look like this:
TargetTime * 1,1
In the Numbers tab change the fromating into Time.