-0.18% is the change from 545 to 544
Calculation steps:
[( 544 - 545 ) ÷ 545] x 100 = -0.18%
Formula
Percentage change = [(544 - 545) / 545] x 100
Subtract the new number by the original number
544 - 545 = -1
-1 ÷ 545 = -0.001834862385321101
-0.001834862385321101 x 100 = -0.18%