The University you attend need to increase total revenue. The president suggests that by raising tuition by 10%, total revenue will increase. However, after the tuition increase, total revenue actually fell. You can infer about the price elasticity of demand for education in your university to be

the PED is elastic (higher than |1| in absolute terms)

Explanation:

for example:

you originally sell 100 units at $10 per unit, total revenue = $1,000

if the PED is inelastic, you increase the price by 10% and quantity demanded falls by 5%: total revenue = 95 x $11 = $1,045 (increased)

if the PED is elastic, you increase the price by 5% and the quantity demanded falls by 10%: total revenue = 90 x $10.50 = $945 (decreased)

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