The salary of Ramesh first increases by 35%, then decreases by 40%, then again increases by 25%. Find the overall increase or decrease percentage.

Increase 1.25%

First increased = +35% , 2nd Decreased = -40%

overall percentage = a + b + \(\frac{ab}{100}\) = +35 - 40 - \(\frac{35×40}{100}\)

= -19% ( decreased )

again increase by 25%

overall percentage = +25 - 19 - \(\frac{25×19}{100}\) = + 1.25%