-51.2% is the change from 543 to 265
Calculation steps:
[( 265 - 543 ) ÷ 543] x 100 = -51.2%
Formula
Percentage change = [(265 - 543) / 543] x 100
Subtract the new number by the original number
265 - 543 = -278
-278 ÷ 543 = -0.5119705340699816
-0.5119705340699816 x 100 = -51.2%