The off peak weekly average cost of hiring a caravan is £520 in July the average cost increase to £800 calculate the percentage in cost give your answer to 2 significant figure

54%

Step-by-step explanation:

For this case you can solve the problem by applying a simple rule of three in which we have

520 - --> 100%

800 - --> x

Clearing x we have

x = (800/520) * 100 = 154%

the percentage increase in cost was

154-100 = 54%

answer

the percentage increase in cost was 54%