I think I might be wrong but try 25% (but like I said probably wrong)
80 / 100 = 1.25
100 - 80 = 20
So, 1.25 x 20 = 25%
Answer:
ok so if we look at this other one we can see that the other angle is 45
since we now all three angles we can find the other side
Side a = 4
Side x = 5.65685 = 4√2
Side c = 4
5.66
Hope This Helps!!!
3 out of 25 = 12 out of 100
3 out of 50 = 6 out of 100
2 out of 25 = 8 out of 100
12 + 6 + 8 = 26
100 - 26 = 74%
