Prices have gone up so much these days.
→  요즘 물가가 너무 올랐어.

[예문]

A: Prices have gone up so much these days.
A: 요즘 물가가 너무 올랐어.

B: Tell me about it.
B: 내 말이.      
  
A: It costs so much just to shop for groceries.
A: 식료품 사는데도 돈이 너무 많이 들어.  
       
B: I know. 
B: 그러게.