-10.83% is the change from 545 to 486
Calculation steps:
[( 486 - 545 ) ÷ 545] x 100 = -10.83%
Formula
Percentage change = [(486 - 545) / 545] x 100
Subtract the new number by the original number
486 - 545 = -59
-59 ÷ 545 = -0.10825688073394496
-0.10825688073394496 x 100 = -10.83%