How to add two field values into new field?

[vinothkumark]

I have a field A which has percentage values. Also, I have a field B which has percentage values in it. Both are different values. 

Now I want to create a new field which adds both the values. 

A              B

10%      30%

20%      50%

30%     70%

The query should fetch me the results like below:

C

40%

70%

100%

[vinothkumark]

@fredclown 
Thanks for input. It works.  Can you help on the query if the values are in decimal?
A              B

10.5      20.3

C
30.8

[fredclown · Accepted solution]

This should work.

| makeresults
| eval A = "10%"
| eval B = "20%"
```The stuff above is just to get sone sample data```
| eval C = tonumber(replace(A,"\D","")) + tonumber(replace(B,"\D","")) . "%"

[fredclown]

This should work with decimals and non-numeric characters.

| makeresults
| eval A = "10.5% sdfgdsfgjlk"
| eval B = "20.2% gdsfdf"
```The stuff above is just to get sone sample data```
| eval C = tonumber(replace(A,"[^0-9\.]+","")) + tonumber(replace(B,"[^0-9\.]+","")) . "%"