How are they busting PG trades

Please Help me understand this...

They announced they are going to bust any trade outside of +60% to -60% of the average price during the day...

They've been all over the news saying PG trades will be busted.

Average price in PG today is about $60 The LOW in PG today is $39.37

$60-$39.37= $20.63 drop.

$20.63/60= 34.38% move,

How are they justifying busting these trades?!?
 
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