-92.4% is the change from 829 to 63
Calculation steps:
[( 63 - 829 ) ÷ 829] x 100 = -92.4%
Formula
Percentage change = [(63 - 829) / 829] x 100
Subtract the new number by the original number
63 - 829 = -766
-766 ÷ 829 = -0.9240048250904704
-0.9240048250904704 x 100 = -92.4%