-57.18% is the change from 829 to 355
Calculation steps:
[( 355 - 829 ) ÷ 829] x 100 = -57.18%
Formula
Percentage change = [(355 - 829) / 829] x 100
Subtract the new number by the original number
355 - 829 = -474
-474 ÷ 829 = -0.571773220747889
-0.571773220747889 x 100 = -57.18%