-69.84% is the change from 829 to 250
Calculation steps:
[( 250 - 829 ) ÷ 829] x 100 = -69.84%
Formula
Percentage change = [(250 - 829) / 829] x 100
Subtract the new number by the original number
250 - 829 = -579
-579 ÷ 829 = -0.6984318455971049
-0.6984318455971049 x 100 = -69.84%