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Answer»

number be XIncreasing it by 25%X+ 0.25X = 1.25X, TAKE this new number as Y (Y=1.25X)Now, Decrease Y by 10%Y - 0.10Y = 0.90YTherefore, 0.90(1.25X) = 1.125XSo the net change in percentage is 12.5%, and to CALCULATE the net change in number just plug in any value of X here 0.125X



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