-19.01% is the change from 826 to 669
Calculation steps:
[( 669 - 826 ) ÷ 826] x 100 = -19.01%
Formula
Percentage change = [(669 - 826) / 826] x 100
Subtract the new number by the original number
669 - 826 = -157
-157 ÷ 826 = -0.1900726392251816
-0.1900726392251816 x 100 = -19.01%