-51.38% is the change from 543 to 264
Calculation steps:
[( 264 - 543 ) ÷ 543] x 100 = -51.38%
Formula
Percentage change = [(264 - 543) / 543] x 100
Subtract the new number by the original number
264 - 543 = -279
-279 ÷ 543 = -0.5138121546961326
-0.5138121546961326 x 100 = -51.38%