-74.43% is the change from 829 to 212
Calculation steps:
[( 212 - 829 ) ÷ 829] x 100 = -74.43%
Formula
Percentage change = [(212 - 829) / 829] x 100
Subtract the new number by the original number
212 - 829 = -617
-617 ÷ 829 = -0.744270205066345
-0.744270205066345 x 100 = -74.43%