-39.6% is the change from 899 to 543
Calculation steps:
[( 543 - 899 ) ÷ 899] x 100 = -39.6%
Formula
Percentage change = [(543 - 899) / 899] x 100
Subtract the new number by the original number
543 - 899 = -356
-356 ÷ 899 = -0.39599555061179087
-0.39599555061179087 x 100 = -39.6%