-23.6% is the change from 890 to 680
Calculation steps:
[( 680 - 890 ) ÷ 890] x 100 = -23.6%
Formula
Percentage change = [(680 - 890) / 890] x 100
Subtract the new number by the original number
680 - 890 = -210
-210 ÷ 890 = -0.23595505617977527
-0.23595505617977527 x 100 = -23.6%