-6.23% is the change from 546 to 512
Calculation steps:
[( 512 - 546 ) ÷ 546] x 100 = -6.23%
Formula
Percentage change = [(512 - 546) / 546] x 100
Subtract the new number by the original number
512 - 546 = -34
-34 ÷ 546 = -0.06227106227106227
-0.06227106227106227 x 100 = -6.23%