Depends. Do you want to buy a pre-build PC by a big company or make one yourself?
If you choose to make one yourself, here's a build with being the currency.
CPU: Intel Core i5-6600 3.3GHz Quad-Core Processor (225.54 @ Mindfactory)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (36.40 @ Amazon Deutschland)
Motherboard: Gigabyte GA-H170M-D3H Micro ATX LGA1151 Motherboard (106.03 @ Mindfactory)
Memory: Kingston HyperX Fury Black 8GB (2 x 4GB) DDR4-2133 Memory (44.88 @ Amazon Deutschland)
Storage: Samsung 850 EVO-Series 120GB 2.5" Solid State Drive (82.06 @ Mindfactory)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (52.77 @ Amazon Deutschland)
Video Card: EVGA GeForce GTX 960 2GB SuperSC ACX 2.0+ Video Card (177.84 @ Mindfactory)
Case: Thermaltake Core V21 MicroATX Mini Tower Case (62.89 @ Amazon Deutschland)
Power Supply: Corsair Builder 600W 80+ Bronze Certified ATX Power Supply (54.85 @ Mindfactory)
Operating System: Microsoft Windows 10 Home OEM 64-bit (142.31 @ Mindfactory)
Total: 985.57
Prices include shipping, taxes, and discounts when available