You should use REPLACE to update a field.

>thank you for reply and code,
>it works as value=0.823 ........
>
>but itry at the field as
>

>use newtest
>SCAN
>ROUND(tper, IIF(tper < .95, 1, 0))
>? tper&&no different 
>wait
>ENDSCAN  
>

>>

>>ROUND(value, IIF(value < .95, 1, 0))
>>