-34.34% is the change from 827 to 543
Calculation steps:
[( 543 - 827 ) ÷ 827] x 100 = -34.34%
Formula
Percentage change = [(543 - 827) / 827] x 100
Subtract the new number by the original number
543 - 827 = -284
-284 ÷ 827 = -0.343409915356711
-0.343409915356711 x 100 = -34.34%