To add to the thrust measurement topic, I think you can also assume that an EPR of less than 1 is an indication that the engine is generating more drag than thrust (would be good to get confirmation of this point).
The RR Trent 895 certainly doesn’t subscribe to that. From the 777ER QRH: 15,000’, 270kts, less than 200T gives required EPR < 1, so whatever the number means, it is not directly representing net thrust.