-27.3% is the change from 890 to 647
Calculation steps:
[( 647 - 890 ) ÷ 890] x 100 = -27.3%
Formula
Percentage change = [(647 - 890) / 890] x 100
Subtract the new number by the original number
647 - 890 = -243
-243 ÷ 890 = -0.27303370786516856
-0.27303370786516856 x 100 = -27.3%