What does increase globally by percentage mean? For simplicity sake: Please can you explain to me what does this mean...."trade increases globally by 10%"? assuming Country A = 100 assuming Country B = 100 does it mean.... 1) 10% for each country so new trade means Country A = 110 Country B = 110 or does it mean... 2) 5% for country A and 5% for country B, so new trade is Country A = 105 Country B = 105 Thank you for your time and effort in helping me with this question

It pretty much has to mean for each country. Otherwise, you get a different answer if you consider China and Taiwan two countries than you do if you consider them one country. And that wouldn't make any sense at all.