-20.99% is the change from 829 to 655
Calculation steps:
[( 655 - 829 ) ÷ 829] x 100 = -20.99%
Formula
Percentage change = [(655 - 829) / 829] x 100
Subtract the new number by the original number
655 - 829 = -174
-174 ÷ 829 = -0.20989143546441497
-0.20989143546441497 x 100 = -20.99%