Alex runs his own construction business.Last week he received letters from two of his suppliers announcing price increases.Alex would like to pass this cost on to his customers.He is afraid that his total revenue will fall if he does increase prices for his customers and he needs you to calculate his elasticity.Last year he passed on a price increase to his customers with the following results: (he has no reason to believe that his customers elasticity has changed since last year.)

Original Quantity Sold = 44

New Quantity Sold = 40

Original Price = $90

New Price = $100

Using last year's data, please calculate his elasticity.Round your answer to two places past the decimal.Do not forget to include your negative sign if your elasticity is negative!

The elasticity for Alex's product is:?