powerRange compute wrong

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my ftp is 185,use 10% powerRange,the /api/v1/athlete/{id}/events?resolve=true&powerRange=10 return 124,138,152 is different with 185x0.65=120.25,185x0.85=157.25,can anyone answer?

10% around the target?
138 +/- 14 is 124 to 152

yes 10%,but my ftp 185x10%=18.5,so why

Because that´s how it is implemented. Set a target and allow 10% deviation around it.

i konw this,so how 14 computed
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What is your question? It is 10% of target power. Your target is 138w. So it is +/- 14w (rounded up). If your target is 200w, it is +/- 20w.

tx,i have knowed that base on target power not ftp