Divide by 4 (25%) and subtract 16. Move the decimal point so the result is reasonable.
16*100/4 - 16 = 400 - 16 = 384.
Random Q for Twitter hive mind: If you hear 16 times 24, what is the mental math you do to multiply it?
https://twitter.com/asusarla/status/1332450052749537281?s=20 On Twitter
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