Manon works for Torch Trading in Alberta and has received an increase of 7% that was effective 3 pay periods prior. Her earings, prior to the increase, were $1,000.00 paid on a semi monthly basis. The current semi-monthly payroll has already been processed based on Manon's new pay period earnings the retroactive amount will be paid on a separate cheque Manon's pay period earnings are the same as her net taxable income. Her federal and provincial TD1 claims codes are 1. Calculate the income taxes on the retroactive amount