value with thousand separator

hi,

i have variable1 like bsid-wrbtr but when stored in variable1 it only stores for example, 12345.80 and not 12,345.80.

may i know how to add the thousand separator into this variable1 where i subsequently move to a text type variable2. this text type variable2 will store value 12,345.80 and not 12345.80.

thanks