-55.05% is the change from 643 to 289
Calculation steps:
[( 289 - 643 ) ÷ 643] x 100 = -55.05%
Formula
Percentage change = [(289 - 643) / 643] x 100
Subtract the new number by the original number
289 - 643 = -354
-354 ÷ 643 = -0.5505443234836703
-0.5505443234836703 x 100 = -55.05%