Tags: #math #percentage
A class has 28 children.
Seven of them play the piano - what percentage of the class is this?
7 / 28 x 100 = 25%
There are 378 README files.
Only 20 of them are valid - what percentage of the READMEs is this?
20 / 378 x 100 = 5%
Given Data:
Normal Logs (N): 827
Error Logs (E): 212
Total Logs (T): N + E = 827 + 212 = 1039
Percentage of Error Logs:
Calculation: (E / T) * 100 = (212 / 1039) * 100 ≈ 20.4%
Percentage of Normal Logs:
Calculation: (N / T) * 100 = (827 / 1039) * 100 ≈ 79.6%
To calculate a specific percentage you first have to calculate 1%.
Then you can multiple that result by the percentage you’re after.
For example, imagine we have 80 balls, and we want to see what 50% of that number is…
total = 80
1% = total/100
50% = (total/100)*50 = 40
Some alternative ways to do it…
£350,000 × 1% ×.01
3,500
£350,000 × 0.9% ×.01
3,150