• Sludgeyy@lemmy.world
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      1 year ago

      1% of 33 is .33

      .33 × 7 =

      .3 x 7 = 2.1

      .03 x 7 = .21

      21 + 2.1 = 2.31

      So

      7% of 33 = 2.31

      You could also do

      33% of 7

      10% of 7 is .7

      1% of 7 is .07

      So 11% is .77

      .77 × 3 =

      .7 × 3 = 2.1

      .07 × 3 = .21

      2.1 + .21 = 2.31