How do you 'waste' components during placement?


>
>     I am attempting to arrive at a reasonable figure for the amount of 
>components that should be provided for SMT assembly, over and above the 
>actual component count needed to complete the boards (i.e. to compensate for 
>components wasted during placement). 1%, 3%, 5%, or whatever.   If you know 
>of an industry standard, or have a company policy, I'd like to know what it 
>is.  My email address is "[log in to unmask]".  Thanks.
>

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