How to control "colorrange= high 5% dark 254%" in Gray scale image

Hello every one,
Our client wants to change the passport size image in B/W art work to do this below comments from client:
“Change the picture (parts supplied look ADV Material) Picture in black, 200 dpi colorrange= high 5% dark 254%, file extension= .tif”
In this comments I didn’t understand “colorrange= high 5% dark 254%” unfortunately I don’t have contact details to ask more details to client. Please some one share with me does i control the same in Gray scale image
Thanks in Advance
Regards,
Siva

Your client's comments don't make any sense.
“colorrange= high 5% dark 254%
Except Color Rage from the Select menu in Photoshop which apparently is not what is meant here, there is no such term "colorrange" neither in Photoshop nor it is something popular in the design and printing terminology. If this is a print job, percentage suggests ink coverage but if so, while "dark 254%" makes sense, the word "high" from "high 5%" doesn't make any sense. If the client was trying to communicate what Zeno is guessing then in the context of the comment, 254 cannot be described as "dark" because this affects the highlights.
If it was me, I will not procede until it is made clear what the task is.

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Attachments:
iPhone_Photo.jpg ‏239 KB
FLIR_IR_Monitor.jpg ‏113 KB
NI_VBAI.jpg ‏205 KB

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How to control "colorrange= high 5% dark 254%" in Gray scale image

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