-2.75% is the change from 546 to 531
Calculation steps:
[( 531 - 546 ) ÷ 546] x 100 = -2.75%
Formula
Percentage change = [(531 - 546) / 546] x 100
Subtract the new number by the original number
531 - 546 = -15
-15 ÷ 546 = -0.027472527472527472
-0.027472527472527472 x 100 = -2.75%