-43.65% is the change from 543 to 306
Calculation steps:
[( 306 - 543 ) ÷ 543] x 100 = -43.65%
Formula
Percentage change = [(306 - 543) / 543] x 100
Subtract the new number by the original number
306 - 543 = -237
-237 ÷ 543 = -0.43646408839779005
-0.43646408839779005 x 100 = -43.65%