-34.46% is the change from 827 to 542
Calculation steps:
[( 542 - 827 ) ÷ 827] x 100 = -34.46%
Formula
Percentage change = [(542 - 827) / 827] x 100
Subtract the new number by the original number
542 - 827 = -285
-285 ÷ 827 = -0.34461910519951633
-0.34461910519951633 x 100 = -34.46%