您搜索了: how can my university mail be useful for me (西班牙语 - 英语)

might be useful for other languages in the future.
might be useful for other languages in the future.

and, as you practice more often this system, you will not need to subtract the unit to be able to see that the distance from 0.99 to 1 is just 0.01, right? so the decrease that we are looking for is -0.01 (unit format), or -1% (percentage format), with a negative sign, because it is a decrease. the numerical reasoning of this 0.99 is simple and may be useful for you: we can see that the final value represents a 99% over the initial value, so necessarily the decrease has been the "lost" part from this 99% to the original 100%, this is, -1%. we insist: the key here is paying attention to the decimal figures, which show you valuable information about what happened with the numbers. next, we offer you some additional examples, and encourage you to practise with your own figures too. 94
then we can subtract the unit: 0.99 = 0.01 1% decrease 93