157.14% is the change from 21 to 54
Calculation steps:
[( 54 - 21 ) ÷ 21] x 100 = 157.14%
Formula
Percentage change = [(54 - 21) / 21] x 100
Subtract the new number by the original number
54 - 21 = 33
33 ÷ 21 = 1.5714285714285714
1.5714285714285714 x 100 = 157.14%