-28.55% is the change from 543 to 388
Calculation steps:
[( 388 - 543 ) ÷ 543] x 100 = -28.55%
Formula
Percentage change = [(388 - 543) / 543] x 100
Subtract the new number by the original number
388 - 543 = -155
-155 ÷ 543 = -0.285451197053407
-0.285451197053407 x 100 = -28.55%