and some in area, there is lower salary than that,lets say people work for small business man, they will pay you about 50-70$ in a month and the worse is no free day in a week, that mean we should work 7day/week.
Yes, that's right, food prices in each region depend on the minimum income of that region. In Indonesia, food prices are quite cheap because the basic price of food ingredients is also cheap. This is because the average income is small. so the ratio between income and expenditure is balanced. I can't imagine what it would be like if the price of food here was the same as in America while the income earned was quite small, it would make it difficult for someone to survive. so everything has been arranged according to its respective measurements. Here, sometimes you can be full with just 10-20 thousand rupiah.