12001, 12002, 12003 so lol
Answer:
Multiplication
Step-by-step explanation:
I think what you're talking about is not a decimal, but a multiplication point:

This dot can donate multiplication when in the middle of two numbers and/or fractions.
But if you're talking about some other point, then I don't know, sorry. :(
Percent of Change:
Difference/Original
(20-16)/16 = 4/16 = 1/4 = 25% increase
Answer:
$64.13
Step-by-step explanation:
the tip would be added to the meal cost