Answer:
$352,500
Explanation:
Development costs incurred prior to June 30, 2021 must be expensed, they cannot be capitalized.
Capitalized R&D costs = $1,410,000
External use software (software intended to be sold to third parties) should be amortized using straight line amortization (4 years in this case):
amortization expense = $1,410,000 / 4 = $352,500