Quick and simple calculation

As it is a direct north south question there is no departure formula etc to worry about

1.5 x 890 = 1335km travelled which is = 717.74nm

We know that for each degree of latitude there is 60nm

717.74/60 =11.96° or 12° effectively travelled north bound

If you are 10° South and you are travelling north it only requires 10° to get to the equator then you travel another 2° to land up at N02° 00