The amount less that will be withheld weekly for federal income tax is $40.65.
The money withheld from the federal income tax will be:
= $348.40/2
= $174.20
The increase in pay will be:
= 15% × $348.40
= $52.26
The new salary will be the addition which is $400.66.
The new money withheld will be:
= $400.66/3
= $133.55
The amount less withheld will be:
= $174.20 - $133.55
= $40.65
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