-27.6% is the change from 750 to 543
Calculation steps:
[( 543 - 750 ) ÷ 750] x 100 = -27.6%
Formula
Percentage change = [(543 - 750) / 750] x 100
Subtract the new number by the original number
543 - 750 = -207
-207 ÷ 750 = -0.276
-0.276 x 100 = -27.6%