Purchase order calculation comparing storage box vendors

whitefurze_purchase.py

from dataclasses import dataclass

@dataclass
class Vendor:
	pass

"""	
	mini45=None 
	midi45=None 
	maxi45=None 
	mini56=None 
	midi56=None 
	maxi56=None 
	mini75=None 
	midi75=None 
	maxi75=None 
"""

class WhitefurzeSpecial(Vendor):
	vat=0.2
	midi45=2.48 
	mini56=2.65 
	midi56=2.88 
	maxi56=4.13 
	mini75=4.13 
	maxi75=5.90

class WhitefurzeNormal(Vendor):
	vat=0.2
	stack18=1.76
	midi45=3.14 
	mini56=3.62 
	midi56=4.10 
	maxi56=5.25 
	mini75=5.17 
	maxi75=7.63

class Mahahome(Vendor):
	vat=0
	midi45=4.09 
	mini56=5.74 
	maxi56=6.81 
	mini75=10.51 
	maxi75=12.69 

purchase = (
 		("stack18", 5),
 		("midi45", 20),
		("mini56", 20),
		("midi56", 20),
		("maxi75", 10),
)

def report():
	for vendor in [WhitefurzeNormal()]:
		print(f"{type(vendor).__name__}")
		totalNet = 0
		totalVat = 0
		vatFactor = (1.0 + v.vat)
		for item, count in purchase:
			price = getattr(vendor, item) * count
			vat = price * vendor.vat
			price = price * 100 // 1 / 100
			totalNet += price
			totalVat += vat
			print(f"{item}x{count}={ price }")
		print(f"Net: £{totalNet}")
		print(f"Vat: £{totalVat}")
		print(f"Total: £{totalNet + totalVat}")
		


report()