28 is 2800% of 1.
Step 1: Translate the words into an equation.
28 | is | what percent | of | 1 |
28 | = | x | $ \cdot $ | 1 |
Step 2: Solve for $ x $.
$$ \begin{aligned} 28 &= x \cdot 1 \\[1.2 em] 1 \cdot x &= 28 \\[1.2 em] x &= \dfrac{ 28 }{ 1 } \\[1.2 em] x &= 28 \end{aligned} $$Step 3: Express $ x $ as a percentage.
$$ x = 28 = 28 ~~\cdot~~ 100 \% = 2800 \% $$