-5.56% is the change from 54 to 51
Calculation steps:
[( 51 - 54 ) ÷ 54] x 100 = -5.56%
Formula
Percentage change = [(51 - 54) / 54] x 100
Subtract the new number by the original number
51 - 54 = -3
-3 ÷ 54 = -0.05555555555555555
-0.05555555555555555 x 100 = -5.56%