-9.54% is the change from 545 to 493
Calculation steps:
[( 493 - 545 ) ÷ 545] x 100 = -9.54%
Formula
Percentage change = [(493 - 545) / 545] x 100
Subtract the new number by the original number
493 - 545 = -52
-52 ÷ 545 = -0.09541284403669725
-0.09541284403669725 x 100 = -9.54%