Answer: 22.84%
Explanation:
Operating profit before interest and tax = $508,848
Less: net nonoperating expense before tax = $107,301
Earning before tax = $508,848 - $107,301 = $401,547
Provision for income taxes = $91,720
Effective tax rate = Provision for income taxes / Earning before tax × 100
= 91720/401547 × 100
= 0.2284 × 100
= 22.84%