the cost of an item is increased by 5% then the new cost is then increased by 4% what is the total percentage increase
Call the original price, P
After the first increase, the price is 1.05P
After the second increase, the new price is P(1.05) (1.04) = 1.092P
So....the percentage increase is ( [ 1.092 - 1] x 100 ) % = [.092 x 100]% = 9.2%