Matlab convert script to function

I wrote my script for a class but the next step is to convert that script into a function. What do I type in? This is my script:
% Find max volume

b = 2.75; %ft for diameter
h = 3.00; %ft for height

v = (b*h)/3; %ft^3
% use volume to find mass
p = 62.3;

m = p*v;

>Solution :

maxVolume(2.75, 3.0, 62.3)

function m = maxVolume(b, h, p)
    v = (b * h)/3;
    m = p * v;
end