-35.02% is the change from 828 to 538
Calculation steps:
[( 538 - 828 ) ÷ 828] x 100 = -35.02%
Formula
Percentage change = [(538 - 828) / 828] x 100
Subtract the new number by the original number
538 - 828 = -290
-290 ÷ 828 = -0.3502415458937198
-0.3502415458937198 x 100 = -35.02%