If the price level rises, your principal rises as well.

如果价格上涨，你的本金也会上涨。

B: I suggest you go up to our next higher price level.

B：我建议您采用我们价格再高一级的货。

I suggest you go up to our next higher price level.

我建议您采用我们价格再高一级的货。

That is, no effects on the price level, real GDP, and so on.

也就是说，对价格水平，实际GDP等等不会有影响。

Printing money will eventually lead to a higher price level or inflation.

印刷货币会造成价格水平上涨或者通货膨胀。