-3.5% is the change from 543 to 524
Calculation steps:
[( 524 - 543 ) ÷ 543] x 100 = -3.5%
Formula
Percentage change = [(524 - 543) / 543] x 100
Subtract the new number by the original number
524 - 543 = -19
-19 ÷ 543 = -0.034990791896869246
-0.034990791896869246 x 100 = -3.5%