也有专门用于餐厅菜单的应用软件，计算小费，食物替代品和计算卡路里。

There are apps for restaurant menus, calculating tips, food substitutes and counting calories.

youdao

我们约会时他计算每一分钱，出租车，饮料甚至小费。

He calculates everything during our dating, taxi, drinks and even tips.

youdao

也就是说，如果你仅按税前金额计算，服务人员就会觉得他得到的小费比你本意要给的少一些。

That means if you calculate it only on the pretax amount, the server simply may view it as a smaller tip than you intended.

youdao