Adjusted stats are imperfect but I still enjoy them as a rough comparison. Here's Ovechkin's career totals adjusted relative to whatever league-wide scoring was for each year that Gretzky was the same age.
View attachment 931513
1x 90 goal season
4x 70 goal seasons
9x 60 goal seasons
11x 50 goal seasons
16x 40 goal seasons
That would be far and away the greatest goal-scorer of all-time. Which I believe he is.
I think your math is pretty much bang on. Your calculation has Ovechkin about 22% ahead of Gretzky in adjusted goals (1,044 / 853 = 22.4%).
The
method used on the History forum has Ovechkin at approximately 946 (936 through the end of last year plus 10 so far this season) compared to Gretzky at 784. 946 / 784 = 20.7%.
Rounding to the nearest percent, it's almost identical (22% vs 21%). There's no point in quibbling over a percent or two in either direction (as this is obviously intended as a high-level ballpark calculation), but your approach looks reasonable.
Ovechkin has already
long since passed Gretzky in any reasonable calculation of era-adjusted goals (which is why I find the race for 894, although superficially interesting, doesn't have a lot of intrinsic value).