This the math for the data provided. :)

PENNSYLVANIA

Democrat Absentee: 1,704,817

Republican Absentee: 625,766

Independent Absentee: 303,355

(https://www.votespa.com/About-Elections/Pages/Counting-Dashboard.aspx)

% of Absentee Ballots that were Returned from Registered Democrats and Non-Republicans:

(1,704,817 + 303,355) / (1,704,817 + 625,766 + 303,355) = 76.24%

% of Absentee Ballots that were Returned from Registered Republicans and Non-Democrats:

(625,766 + 303,355) / (1,704,817 + 625,766 + 303,355) = 35.27%

Total Biden Mail Votes: 1,942,596

Total Trump Mail Votes: 582,430

Total Jo Mail Votes: 23,996

(https://electionreturns.pa.gov/)

% of Absentee Ballots that voted for Biden:

1,942,596 / (1,942,596 + 582,430 + 23,996) = 0.7623 = 76.21%

% of Absentee Ballots that voted for Trump:

582,430 / (1,942,596 + 582,430 + 23,996) = 0.7623 = 22.85%

% of Democrat and Non-Republican Absentee Voters who voted for Joe Biden:

76.21% / 76.24% = 99.96%

% of Republican and Non-Democrat Absentee Voters who voted for Donald Trump:

22.85% / 35.27% = 64.79%

NORTH CAROLINA

37.34% Absentee were Democrats

31.68% Absentee were Republican

30.44% Absentee were Unaffiliated

0.46% were Libertarian

0.05% were Constitution

0.04% were Green

(https://dl.ncsbe.gov/Press/NC%20Absentee%20Stats%20for%202020%20General%20Election/Absentee_Stats_2020General_11042020.pdf)

% of Absentee Ballots that were Returned from Registered Democrats and Non-Republicans

37.34% + 30.44% + 0.46% + 0.05% + 0.04% = 68.33%

% of Absentee Ballots that were Returned from Registered Republicans and Non-Democrats:

31.68% + 30.44% + 0.46% + 0.05% + 0.04% = 62.67%

51.7% of Absentee Ballots voted for Biden

47.2% of Absentee Ballots voted for Trump

(https://www.nytimes.com/interactive/2020/11/03/us/elections/results-north-carolina-president.html)

% of Democrat and Non-Republican Absentee Voters who voted for Joe Biden:

51.7% / 68.33% = 75.66%

% of Republican and Non-Democrat Absentee Voters who voted for Donald Trump:

47.2% / 62.67% = 75.32%

ARIZONA

36.5% Absentee were Democrats

37.4% Absentee were Republican

26.0% Absentee were Independent

(https://www.dataorbital.com/2020-general-election-early-vote-tracker)

% of Absentee Ballots that were Returned from Registered Democrats and Non-Republicans

36.5% + 26.0% = 62.5%

% of Absentee Ballots that were Returned from Registered Republicans and Non-Democrats

37.4% + 26.0% = 63.4%

51.9% of Absentee Ballots voted for Biden

46.6% of Absentee Ballots voted for Trump

(https://www.nytimes.com/interactive/2020/11/03/us/elections/results-arizona-president.html)

% of Democrat and Non-Republican Absentee Voters who voted for Joe Biden:

51.9% / 62.5% = 83.04%

% of Republican and Non-Democrat Absentee Voters who voted for Donald Trump:

46.6% / 63.4% = 73.5%

FLORIDA

Democrat Absentee: 2,190,002

Republican Absentee: 1,506,889

Other Absentee: 66,319

No Party Affiliation Absentee: 1,093,288

(https://countyballotfiles.floridados.gov/VoteByMailEarlyVotingReports/PublicStats)

% of Absentee Ballots Returned from Registered Democrats and Non-Republicans:

(2,190,002 + 66,319 + 1,093,288) / (1,506,889 + 2,190,002 + 66,319 + 1,093,288) = 68.97%

% of Absentee Ballots Returned from Registered Republicans and Non-Democrats:

(1,506,889 + 66,319 + 1,093,288) / (1,506,889 + 2,190,002 + 66,319 + 1,093,288) = 54.9%

50.2 % of Absentee Ballots voted for Biden

48.9% of Absentee Ballots voted for Trump

(https://www.nytimes.com/interactive/2020/11/03/us/elections/results-florida-president.html)

% of Democrat and Non-Republican Absentee Voters who voted for Joe Biden:

50.2% / 68.97% = 72.79%

% of Republican and Non-Democrat Absentee Voters who voted for Donald Trump:

48.9% / 54.9% = 89.1%

OKLAHOMA

Democrat Absentee: 184,580

Republican Absentee: 205,881

Libertarian Absentee: 2,023

Independent Absentee: 53,847

(https://www.ok.gov/elections/documents/Combined_Ballot_Totals_by_Affiliation_11032020_1103.pdf)

% of Absentee Ballots Returned from Registered Democrats and Non-Republicans:

(184,580 + 2,023 + 53,847) / (184,580 + 205,881 + 2,023 + 53,847) = 53.87%

% of Absentee Ballots Returned from Registered Republicans and Non-Democrats:

(205,881 + 2,023 + 53,847) / (184,580 + 205,881 + 2,023 + 53,847) = 58.65%

48.8% of Absentee Ballots voted for Biden

49.2% of Absentee Ballots voted for Trump

(https://www.nytimes.com/interactive/2020/11/03/us/elections/results-oklahoma-president.html )

% of Democrat and Non-Republican Absentee Voters who voted for Joe Biden:

48.8% / 53.87% = 90.59%

% of Republican and Non-Democrat Absentee Voters who voted for Donald Trump:

49.2% / 58.65% = 83.89%

References:

https://www.votespa.com/About-Elections/Pages/Counting-Dashboard.aspx

https://electionreturns.pa.gov/

https://dl.ncsbe.gov/Press/NC%20Absentee%20Stats%20for%202020%20General%20Election/Absentee_Stats_2020General_11042020.pdf

https://www.nytimes.com/interactive/2020/11/03/us/elections/results-north-carolina-president.html

https://www.dataorbital.com/2020-general-election-early-vote-tracker

https://www.nytimes.com/interactive/2020/11/03/us/elections/results-arizona-president.html

https://countyballotfiles.floridados.gov/VoteByMailEarlyVotingReports/PublicStats

https://www.nytimes.com/interactive/2020/11/03/us/elections/results-florida-president.html

https://www.ok.gov/elections/documents/Combined_Ballot_Totals_by_Affiliation_11032020_1103.pdf

https://www.nytimes.com/interactive/2020/11/03/us/elections/results-oklahoma-president.html