A friend of mine runs a pharmacy.   He has a specialized function in his Dispensary application which receives a decimal value of currency and replaces it to a standard value.   This value is regulated by a government department.



Task

Given a floating point value between   0.00   and   1.00,   rescale according to the following table:

>=  0.00  <  0.06  :=  0.10
>=  0.06  <  0.11  :=  0.18
>=  0.11  <  0.16  :=  0.26
>=  0.16  <  0.21  :=  0.32
>=  0.21  <  0.26  :=  0.38
>=  0.26  <  0.31  :=  0.44
>=  0.31  <  0.36  :=  0.50
>=  0.36  <  0.41  :=  0.54
>=  0.41  <  0.46  :=  0.58
>=  0.46  <  0.51  :=  0.62
>=  0.51  <  0.56  :=  0.66
>=  0.56  <  0.61  :=  0.70
>=  0.61  <  0.66  :=  0.74
>=  0.66  <  0.71  :=  0.78
>=  0.71  <  0.76  :=  0.82
>=  0.76  <  0.81  :=  0.86
>=  0.81  <  0.86  :=  0.90
>=  0.86  <  0.91  :=  0.94
>=  0.91  <  0.96  :=  0.98
>=  0.96  <  1.01  :=  1.00



price_fraction n
  | n < 0 || n > 1 = error "Values must be between 0 and 1."
  | n < 0.06 = 0.10
  | n < 0.11 = 0.18
  | n < 0.16 = 0.26
  | n < 0.21 = 0.32
  | n < 0.26 = 0.38
  | n < 0.31 = 0.44
  | n < 0.36 = 0.50
  | n < 0.41 = 0.54
  | n < 0.46 = 0.58
  | n < 0.51 = 0.62
  | n < 0.56 = 0.66
  | n < 0.61 = 0.70
  | n < 0.66 = 0.74
  | n < 0.71 = 0.78
  | n < 0.76 = 0.82
  | n < 0.81 = 0.86
  | n < 0.86 = 0.90
  | n < 0.91 = 0.94
  | n < 0.96 = 0.98
  | otherwise = 1.00