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how much should 80c6 be decreases to get 25:36​

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1. Introduction. Percent, p%

   ‘Percent (%)’ means ‘out of one hundred’:

   • p% = p ‘out of one hundred’,
   • p% is read p ‘percent’,
   • p% = p/100 = p ÷ 100.
   • 25% = 25/100 = 25 ÷ 100 = 0.25.
   • 100% = 100/100 = 100 ÷ 100 = 1.

   Decrease number by 25% of its value.

   • Percentage decrease = 25% × 36
   • New value = 36 – Percentage decrease

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