ε78920S>sk}`.S
Returns 1, -1, or 0 for more than; less than; or equal respectively.
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Explanation:
ε # Loop over the input-array
78920S> # Convert 78920 to a list of digits, and increase each by 1,
# resulting in [8,9,10,3,1]
sk # Index this list with the input-number (-1 if not found)
# i.e. [1,4] → [4,-1]
} # Stop the loop
` # Put all items of the now mapped list separated onto the stack
.S # Take the signum (1 if a>b; -1 if a<b; 0 if a==b)
# i.e. 4 and -1 → 1