percent means 'parts out of 100' so 0.01=1/100=1%
so 80/320=10/40=1/4=25/100=25%
or you could use a calculator to divide and get 0.25 you would then multiply 0.25 by 100 and get percent or 25%
To find what percent 80 is of 320, divide 80 by 320, which equals 4 1 or 0.25. Multiply 0.25 by 100 to find that 80 is 25% of 320. Thus, 80 is 25% of the total value of 320.
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