The quick way I was taught to eyeball it is to shift the decimal over one place to the left in the total, and double it. That’s 20%. In this case $30.53 > $3.053 > $6.106 ~ $6.10
My coworkers would always tell me that when I worked in restaurants, but I never really figured it out with my A.D.D. brain and being distracted with serving customers. Now that I see it written out, that is helpful!
The quick way I was taught to eyeball it is to shift the decimal over one place to the left in the total, and double it. That’s 20%. In this case $30.53 > $3.053 > $6.106 ~ $6.10
My coworkers would always tell me that when I worked in restaurants, but I never really figured it out with my A.D.D. brain and being distracted with serving customers. Now that I see it written out, that is helpful!