Percent Increase or Decrease and Discount

Example 1: To calculate what a 40% increase is on 30, we first use the method shown above to calculate the size of the increase – this is 40% of 30 = (40 / 100) x 30 = 0.4 x 30 = 12. As we are trying to work out what the final number is after this increase, we then add … ................
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