-67.75% is the change from 828 to 267
Calculation steps:
[( 267 - 828 ) ÷ 828] x 100 = -67.75%
Formula
Percentage change = [(267 - 828) / 828] x 100
Subtract the new number by the original number
267 - 828 = -561
-561 ÷ 828 = -0.677536231884058
-0.677536231884058 x 100 = -67.75%