How to work out a 30% increase?


Editorial team Published on

To work out a 30% increase on a number, multiply the original number by 1.30.

📌 Two Ways to Calculate It

  • The Quick Method: Multiply your starting number by 1.30.
    • Example: 50 × 1.30 = 65.
  • The Step-by-Step Method:
    • Find 10% of the number by moving the decimal point one place to the left.
    • Multiply that result by 3 to get 30%.
    • Add that amount to your original number.
    • Example for 80:
      • 10% of 80 is 8.
      • 30% is 8 × 3 = 24.
      • Add it to the start: 80 + 24 = 104.