-70.08% is the change from 829 to 248
Calculation steps:
[( 248 - 829 ) ÷ 829] x 100 = -70.08%
Formula
Percentage change = [(248 - 829) / 829] x 100
Subtract the new number by the original number
248 - 829 = -581
-581 ÷ 829 = -0.7008443908323281
-0.7008443908323281 x 100 = -70.08%