-9.05% is the change from 597 to 543
Calculation steps:
[( 543 - 597 ) ÷ 597] x 100 = -9.05%
Formula
Percentage change = [(543 - 597) / 597] x 100
Subtract the new number by the original number
543 - 597 = -54
-54 ÷ 597 = -0.09045226130653267
-0.09045226130653267 x 100 = -9.05%