import csv
from collections import defaultdict

filename = 'orders_export_1 (8)(1).csv'

total = 0
with open(filename, 'r', encoding='utf-8-sig') as f:
    reader = csv.DictReader(f)
    for row in reader:
        name = row.get('Lineitem name', '').upper()
        if 'CLUB 78' in name:
            price = float(row.get('Lineitem price') or 0)
            qty = int(row.get('Lineitem quantity') or 0)
            discount = float(row.get('Lineitem discount') or 0)
            total += (price * qty) - discount
print(f"Total 'CLUB 78': {total}")