Android Question String numerals to number and back again

I've searched but couldn't find the answer so please help

I have two labels containing a numeric value i.e. lblA.text = "2.14" lblB.text = "7.35" i want to be able to multiply them together and then put the resulting value in lblC.text = "‭15.73" , and round the result up to two decimal places, hope you can point me in the right direction