Salary raised by 10percent and reduce by 10 percentpercent change in his salary.easy method
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suppose initial salary is 100%
then increase by 10% = 110%
then reduce by 10%
110 × 90/100 = 9900/100 = 99%
decrease by 100% - 99% = 1%
then increase by 10% = 110%
then reduce by 10%
110 × 90/100 = 9900/100 = 99%
decrease by 100% - 99% = 1%
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