Probably you meant 20%. So that's X * 2 * 1.2. Or X * 2.4. Or make it easier and say 2.5. And 2.5 is 10 /4. So another way to say this is "take your reasonable

Probably you meant 20%. So that's X * 2 * 1.2. Or X * 2.4. Or make it easier and say 2.5. And 2.5 is 10 /4. So another way to say this is "take your reasonable expectation, multiply it by 10 to become really unreasonable then make it reasonable again by divide it with 4".