The phrase "90 comes before 70" is true when considering alphabetical order. In a list or sequence, the word "ninety" comes before the word "seventy." This is a play on words rather than a mathematical concept.
90% of 70= 90% * 70= 0.9 * 70= 63
70 as a percentage of 90 = 100*70/90 = 77.77...%
120
160= 70 + 90= 160
710 out of 90, as a percentage = 100*70/90 = 77.777...
80
90% of 70= 90% * 70= 0.9 * 70= 63
70 as a percentage of 90 = 100*70/90 = 77.77...%
120
90 - 70 = 20
70
90 > 70
160= 70 + 90= 160
710 out of 90, as a percentage = 100*70/90 = 77.777...
70
70 and 90
The percentage change from 70 to 90 is +28.5714%