-65.7% is the change from 828 to 284
Calculation steps:
[( 284 - 828 ) ÷ 828] x 100 = -65.7%
Formula
Percentage change = [(284 - 828) / 828] x 100
Subtract the new number by the original number
284 - 828 = -544
-544 ÷ 828 = -0.6570048309178744
-0.6570048309178744 x 100 = -65.7%