Extending the duration of a still image after applying scaling to it?

I have a still image that I am keyframing to scale down from 100% to 50% over its duration and at the end of the clip I move it to the upper left of the screen. After it moves to the upper left I want it to stay in that spot. What is the best way to do this?

I had my final keyframe on the last frame of the clip. Would I now somehow extend the length of the clip longer?

Thanks.