Scavenger Golems will break down over time, at a rate of 0.5% per hour.

So example would this be if you were earning 1 part per hour the reduction would be
0.995 hour 1
0.99 Hour 2
0.985 Hour 3 Etc

or

0.995 hour 1
0.990025 hour 2
0.985074875 hour 3 Etc

Still should be intresting to see how this goes