Attacks per second calculation (on poet's pen wand) possible rounding error

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• I'm running the latest version of Path of Building and I've verified this by checking the changelog

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• I've checked for duplicate issues by using the search function of the issue tracker

Check for support

• I've checked that the calculation is supposed to be supported. If it isn't please open a feature request instead (Red text is a feature request).

What is the value from the calculation in-game?

The trade site calculates "attacks per second" to 1.72 See here:

What is the value from the calculation in Path of Building?

If you import/copy item into pob it auto calculates it to be 1.73:

I am guessing this is a rounding error.

How to reproduce the issue

1. Go to trade:

https://www.pathofexile.com/trade/search/Standard/kX7n23Qi5

1. Copy item:

Item Class: Wands
Rarity: Unique
The Poet's Pen
Carved Wand
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Wand
Quality: +30% (augmented)
Physical Damage: 9-17
Critical Strike Chance: 7.00%
Attacks per Second: 1.72 (augmented)
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Requirements:
Level: 12
Int: 47
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Sockets: B-B-R 
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Item Level: 84
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Quality does not increase Physical Damage (enchant)
1% increased Attack Speed per 8% Quality (enchant)
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15% increased Spell Damage (implicit)
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+1 to Level of Socketed Skill Gems per 25 Player Levels
Trigger a Socketed Spell when you Attack with this Weapon, with a 0.25 second Cooldown
Adds 3 to 5 Physical Damage to Attacks with this Weapon per 3 Player Levels
12% increased Attack Speed
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In every piece of prose, lies a tiny spark of magic.
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Note: ~price 3 exalted

1. See that pob thinks that 1.72 should be 1.73

Character build code

No need you can do this with any character as its just the copy/paste of the item.

Screenshots

No response

Reproduce the discrepancy by importing the provided Poet's Pen item and comparing Path of Building's attack speed with the trade listing. Trace the attack-speed calculation from the item import or calculation entry point, then verify that the displayed value matches the expected 1.72 without affecting other attack-speed calculations.