1969 South Korean constitutional referendum
Results

Choice
Votes
%
For
7,553,655
67.5
Against
3,636,369
32.5
Invalid/blank votes
414,014
–
Total
11,604,038
100
Registered voters/turnout
15,048,925
77.1
Source: Nohlen et al.
Source: Nohlen et al.
Source: Nohlen et al.

Question: What percentage of voters, with a turn out of 77.1% approved the changes to the 1969 South Korean constitution?
Answer: The changes to the 1969 South Korean constitution were approved by 67.5% of voters, with a turnout of 77.1%.