All formulas of percentages
Answers
Step-by-step explanation:
Percent implies “for every hundred”.
% is read as percentage and x % is read as x per cent.
2. To calculate p % of y
(p/100) x y = (p x y)/100
p % of y = y % of p
3. To find what percentage of x is y: y/x × 100
4. To calculate percentage change in value
Percentage change = {change/(initial value)} x 100
5. Percentage point change = Difference of two percentage figures
6. Increase N by S % = N( 1+ S/100 )
7. Decrease N by S % = N (1 – S/100)
8. If the value of an item goes up/down by x%, the percentage reduction/increment to be now made to bring it back to the original point is 100x/ (100 + x) %.
9. If A is x% more /less than B, then B is 100x/(100 + x) % less/more than A.
10. If the price of an item goes
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