Challenge "Ballpark order"/Python what is wrong?

Question

Can someone tell me what's the mistake here? I can't find what's wrong with this code test 1 and 2 passed, the hidden ones are wrong

order=input()
order = order.split(" ")

total_cost = 0.00
for item in order:
if item =='Water':
total_cost+=4
elif item =='Cheeseburger':
total_cost+=10
elif item =='Nachos':
total_cost+=6
elif item =='Coke':
total_cost+=5
elif item =='Pizza':
total_cost+=6
else:
total_cost+=5

total_cost *=1.07
print(total_cost)

Answer 1

Ak Le

#print(total_cost)

x = "{:.2f}".format(total_cost)

print(x)

Answer 2

Thank you!