matlab not using the variable i give it in differential equation

i try giving matlab values for my variable but it does not use them.

>> syms k N t

>> k = 0.025;

>> N = 1000;

>> dsolve('DP=k*P*(1-(P/N))', 'P(0)=200')

ans =

N/(exp(log(N/200 - 1) - k*t) + 1)

How do i get it to give me the same equation but with the values if k and N plugged in

Answer 1

[Torsten]

syms k N t P(t)
knum = 0.025;
Nnum = 1000;
sol = simplify(dsolve(diff(P,t)==k*P*(1-(P/N)), P(0)==200))

sol = 

sol = subs(sol,[k N],[knum,Nnum])

sol =