-41.3% is the change from 828 to 486
Calculation steps:
[( 486 - 828 ) ÷ 828] x 100 = -41.3%
Formula
Percentage change = [(486 - 828) / 828] x 100
Subtract the new number by the original number
486 - 828 = -342
-342 ÷ 828 = -0.41304347826086957
-0.41304347826086957 x 100 = -41.3%