judge.oversteer
As I said, it was just an example to show that selected thrust may be as low as 60% of maximum thrust. I believe the fixed de-rates may be operator selected depending on the engine type. Even the sub-types may have a different "fixed" de-rate. (T/O 1, T/O 2)
Those percentages were for the RR with the Trent core, G and H cores may be different, as will GE and PW.
Climb de-rates (CLB 1, CLB 2) also washout at different rates.
I am sure an engine specialist can give you more information.