Final answer:
To calculate the tip percentage, divide the tip amount by the bill amount and multiply by 100.
Step-by-step explanation:
To calculate the tip percentage, divide the tip amount by the bill amount and multiply by 100. In this case, the tip amount is $55 - $44 = $11. The tip percentage is ($11 / $44) * 100 = 25%. Therefore, you left a 25% tip.