-51.1% is the change from 544 to 266
Calculation steps:
[( 266 - 544 ) ÷ 544] x 100 = -51.1%
Formula
Percentage change = [(266 - 544) / 544] x 100
Subtract the new number by the original number
266 - 544 = -278
-278 ÷ 544 = -0.5110294117647058
-0.5110294117647058 x 100 = -51.1%