So I thought it would be smarter to level up my oil rigs to 300 first then work my way back down. Now to go from 300 to 310 Oil rigs it's 232.879 Quintillion, however to go from 290 to 300 Newspaper Delivery it's 487.641 Quintillion... Is that a glitch or just to make reaching 300 of everything take that much longer regardless of which business is raised first?