-34.95% is the change from 827 to 538
Calculation steps:
[( 538 - 827 ) ÷ 827] x 100 = -34.95%
Formula
Percentage change = [(538 - 827) / 827] x 100
Subtract the new number by the original number
538 - 827 = -289
-289 ÷ 827 = -0.34945586457073763
-0.34945586457073763 x 100 = -34.95%