-40% is the change from 905 to 543
Calculation steps:
[( 543 - 905 ) ÷ 905] x 100 = -40%
Formula
Percentage change = [(543 - 905) / 905] x 100
Subtract the new number by the original number
543 - 905 = -362
-362 ÷ 905 = -0.4
-0.4 x 100 = -40%
Example