German -> English (or my mother tongue) is easy. I probably remember >90%. But the other way it's harder. I remember maybe half of those German words, further 1/4 I can recall after some mental effort, and probably 1/4 are lost or they would require say >10 min thinking (actually possible to recover them with some techniques).

In any case I use many of those words actively today (e.g. during my German classes).

E.g. yesterday, I tried to use word 'horizontal' in German, as it was on the list, and couldn't recall it quickly. My teacher gave me the word ('waagrecht'), and I should have obviously know it, and would know the meaning if somebody used it in German, but couldn't recall it easily.