No formatting to speak of
hello  8  32.99
world  10  86
red  99  73.279
blue  2  25.7643
purple  15  59.23

Use setw to make columns, default is right justified
   hello    8    32.99
   world   10       86
     red   99   73.279
    blue    2  25.7643
  purple   15    59.23

Use setw, change justification appropriately
hello       8    32.99
world      10       86
red        99   73.279
blue        2  25.7643
purple     15    59.23

Set two places after decimal point
hello       8    32.99
world      10    86.00
red        99    73.28
blue        2    25.76
purple     15    59.23