IF Logic for Multiple arguments

I'm hoping someone can please assist me with this problem. In the following cells, I have the following values:

P8 = 9 
Q8 = 7 
R8 = 5 
S8 = 4 
T8 = 2

Essentially, I want a formula that looks back across 4 cells and identifies if the trend has declined for 1, 2, 3 or 4 cells with an output in cell U8. U am currently trying the following formula which isn't working:

`=if(((T8<S8,S8<R8,R8<Q8,Q8<P8),"4"),((T8<S8,S8<R8,R8<Q8),"3"),((T8<S8,S8<R8),"2"),(T8<S8,"1"))`