Reverse Percentages

Question 1:

A house was sold for £479000, at a profit of 13%. Find the original amount.

£423894

Question 2:

A car was sold for £34000, at a profit of 17%. Find the original amount.

£29060

Question 3:

A house was sold for £470000, at a loss of 7%. Find the original amount.

£505376

Question 4:

A house was sold for £152000, at a loss of 26%. Find the original amount.

£205405