We need to see the number line before we can help you.. I'm sorry.
Https://tex.z-dn.net/?f=23%5C%25+%5C+of+%5C+75%3D23%5C%25+%5Ctimes+75%3D%5Cfrac%7B23%7D%7B100%7D+%5C...
1.4 times
because if next year is (1.4)^(x+1) and this year is 1.4^x by dividing them it wil be 1.4^1