-71.45% is the change from 543 to 155
Calculation steps:
[( 155 - 543 ) ÷ 543] x 100 = -71.45%
Formula
Percentage change = [(155 - 543) / 543] x 100
Subtract the new number by the original number
155 - 543 = -388
-388 ÷ 543 = -0.714548802946593
-0.714548802946593 x 100 = -71.45%