Question

Find the total percent increase in the income if there are two successive increase of percentage of 10 % each

Answer 1

Answer:

Both percentage changes are positive: x and y are positive and net increase = (x+y+xy/100) %. Percentage Change involving three changes: If value of an object/number P is successively changed by x%, y% and then z%, then final value.

Answer 2

Answer:

Let the successive increase in percentages be  and . In that case, the total increase will be 

Lets try an example:

If the increase is 10% and 20 %, the successive increase will be