How can I sum 2 textfield calculations to process later?

[tkmbe]

Hello

I have 2 textfield calculations in an detail.

1.Textfield
(($V{P1}.divide(new BigDecimal(1.21), 2, java.math.RoundingMode.HALF_UP)).multiply($V{C1})).toPlainString()

2. Textfield
(($V{P2}.divide(new BigDecimal(1.21), 2, java.math.RoundingMode.HALF_UP)).multiply($V{C2})).toPlainString()

How can I sum this 2 calculations and put in an variable to process later (in summary)?