Answer:
The Black head bands are sold in greater percentage then white bands.
Explanation:
Total number of White head bands = 300
Number of white bands sold = 195
⇒

=

or, Percentage of white bands sold = 65%
Total number of Black head bands = 400
Number of Black bands sold = 300
⇒

=

or, Percentage of Black bands sold = 75%
and , 75% > 65%
Hence, on comparison, we see that The Black head bands are sold in greater percentage then white bands.