-27.75% is the change from 890 to 643
Calculation steps:
[( 643 - 890 ) ÷ 890] x 100 = -27.75%
Formula
Percentage change = [(643 - 890) / 890] x 100
Subtract the new number by the original number
643 - 890 = -247
-247 ÷ 890 = -0.27752808988764044
-0.27752808988764044 x 100 = -27.75%