Upload your edited types.xml and compare nominal values against an uploaded baseline or the remote DayZ vanilla Central Economy file.
The nominal parameter controls the target number of instances of an item that the Central Economy maintains. If fewer exist, the game will spawn more until this target is met. Keeping nominal values close to a known-good baseline helps balance loot availability and performance.
You can learn more about other types.xml parameters like min, lifetime and restock on the DZconfig wiki.
Note: Items that only appear in the baseline file but not in your custom file are treated as zero nominal on your side; likewise, new items in your file have no baseline counterpart. Duplicate type names are aggregated for comparison and preserved when adjusted XML is exported.