# Nearest Reverse Multiple Spikes
Nearest Reverse Multiple Spikes move the motor reverse to the closest multiple of Factor plus Offset. Put another way:
$$NewPosition=Round↓(CurrentMotorPosition/Factor)∗Factor+Offset$$
Nearest Reverse Multiple Spikes use the `←` icon in the Spike List to indicate that they are a nearest reverse multiple.
## Change The Type
To change the type of spike, select the spike in the Spike List and then select nearest reverse multiple from the type dropdown menu.
## Changing The Factor
To change the factor double-click in the Factor column and give it a new factor.
## Changing The Offset
To change the offset double-click in the Offset column and give it a new offset.
## Example
In this example we want to rotate the turntable reverse to the 9 o'clock position (assuming upstage is 12 o'clock and downstage is 6 o'clock). For this we set our factor to 360 degrees (one full revolution) and our offset to 270 degrees (9 o'clock).
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