In a certain code language, PROUD is written as WYJPK. How will GUILTY be written in that language?

NPDSAF

1  2    3    4   5    6   7     8    9  10  11  12  13

 A   B   C    D   E    F   G    H    I    J    K    L   M

 ↓    ↓    ↓    ↓    ↓     ↓   ↓    ↓     ↓   ↓    ↓    ↓    ↓

 Z   Y    X   W   V    U   T    S    R   Q   P    O   N

26  25  24  23  22  21  20  19  18  17  16  15  14

******************************************************

THE LOGIC FOLLOWED HERE IS :

CONSONANTS ARE INCREASE -7

VOWELS ARE DECREASED BY - 5

AS

P → (+7)  → W

R → (+7)  → Y

O → (-5) → J

U  → (-5) → P

D → (+7)  → K

SIMILARLY

G → (+7)  → N

U → (-5)→ P

I  → (-5)→ D

L → (+7) → S

T  → (+7)  → A

Y  → (+7)  → F