Q:  Assuming a uniform distribution of stars,
                    how many more stars could ELT observe than JWST?


              If ELT can observe stars which are 5.43 times farther
              away than JWST, then the volume is samples is

                                                 3
                ( ELT volume  )      (   5.43   )
                ( ----------- )   =  ( -------- )    =   160
                ( JWST volume )      (    1     )


              If stars are uniformly distributed in space -- which
              is roughly true in the solar neighborhood -- then ELT
              could observe about 160 times as many exoplanet
              systems as JWST.
   
              That's a significant increase!