Cuemath on Instagram: "The Percentages Video Every Kid Should Watch. A 40% increase followed by a 40% decrease — does that bring you back to where you started? Many of us might say yes, but that’s not true. Percentages don’t work this way, and this is one of the most common misconceptions kids struggle with. In this video, we explain why. At Cuemath, we offer personalized one-on-one online math tutoring for grades K–12. Our curriculum and tutors help kids build a deep understanding of math conce