division med variabler

dette virker ikke, hvorfor?

on enterframe me
  global P
  global A
  global E
  global I
  global X
  X = (P+A+E+I)
  global Y
  Y = (P)/(X) 
  put Y*100&"%" into field "P"
  put Y*100&"%" into field "A"
  put Y*100&"%" into field "E"
  put Y*100&"%" into field "I"
  set the height of sprite 6 = P*10
  set the height of sprite 7 = A*10
  set the height of sprite 8 = E*10
  set the height of sprite 9 = I*10
end