For Amazon sellers that account for over 60% of goods sold on the e-retailer's sprawling marketplace, times would be tough no matter what right now. The Trump administration's high tariffs on imports have created a year of hardship, and the recent war with Iran has led to a spike in energy costs, further pressuring merchants to either raise prices on struggling consumers or eat the losses. As if that's not enough, Amazon is implementing a new set of policies that some sellers say make doing