-28.18% is the change from 543 to 390
Calculation steps:
[( 390 - 543 ) ÷ 543] x 100 = -28.18%
Formula
Percentage change = [(390 - 543) / 543] x 100
Subtract the new number by the original number
390 - 543 = -153
-153 ÷ 543 = -0.281767955801105
-0.281767955801105 x 100 = -28.18%