Look up population
Derive percentage
https://www.google.com/search?q=nyc+population says 8.4M
https://www.google.com/search?q=corona+death+toll+nyc says 10k
https://nypost.com/2020/04/18/nyc-coronavirus-deaths-near-13... says 13k
This gives 0.1%. The OP's numbers are based on 6M population & 15k deaths. I believe their trying to cite total deaths, not just covid-19 related. Their NYC region also seems to be more localized
This is less than the original parent states, but only by 2x.
[0] https://www.google.com/search?client=safari&rls=en&q=coronav...
[1] https://www.google.com/search?client=safari&rls=en&q=nyc+pop...
[2] Elementary math?
Overall mortality, compared to the baseline, has skyrocketed in the past few weeks. For the March 4 - April 4 time period, it was double the usual rate. [2]
[1] https://www.npr.org/sections/coronavirus-live-updates/2020/0...
[2] https://www.nytimes.com/interactive/2020/04/10/upshot/corona...
Johns Hopkins shows 14,451 deaths as of now: https://gisanddata.maps.arcgis.com/apps/opsdashboard/index.h...