I like the % on AWS (or infra let’s say) because it is possible to be too cheap and get engineers to solve problems the clouds can offer you a solution off the shelf. Since the Engineers are making the decisions the may balk at spending $10k/m for something in a cloud but if it is framed as 0.1% ARR it can be put into perspective: this is 1/1000th of your infra spend, is it worth it? Or would you rather have X? The idea being to untie personal spending decisions and fear i to a business decision.