In Organic Chemistry, what is Stabilization Energy and how is it calculated?

Question

For example:
"The enthalphy of reaction (H0rxn) for the conversion of cyclohexene to cyclohexane by hydrogenation is –28.6 kcal/mol and is –49.8 kcal/mol for the conversion of benzene to cyclohexane. Use these data to estimate the stabilization energy of benzene. "

Answer 1

Multiply the -28.6 by 3, for the three double bonds, and compare it with the -49.8. The difference is stabilisation energy.