I'm going to work this out a little different though than you assumptions, given the types of jobs that are here, I don't think the average will jump a huge amount though.
The average for a callcenter employee in WA is around $30-35k. There are 70 employees that are going to receive an increase and I'm going to assume that they're all on $35k (even though there will probably be a proportion of those closer to $70k), even though this is overly conservative. Even minimum wage in Seattle now is about $32k/yr.
70x ($70k - $35k) is a net $2.45m increase in wages.
Payroll tax in WA is 5.5% on salary expenses above $800k/yr.
5.5% of the additional $2.45m is $135k.
The net increase in wages is therefore around $2.6m.
His salary will be brought down to $70k.
Their current net profit is $2.2m, the additional gain from his pay cut is around $900k.
Therefore this increase (even if done in year 1) will still have their net profit (assuming the $2.2m is before tax) at $500k. Sure, not as good as my original math, but still sustainable in a predictable business like this probably is at this stage.