-35.15% is the change from 643 to 417
Calculation steps:
[( 417 - 643 ) ÷ 643] x 100 = -35.15%
Formula
Percentage change = [(417 - 643) / 643] x 100
Subtract the new number by the original number
417 - 643 = -226
-226 ÷ 643 = -0.3514774494556765
-0.3514774494556765 x 100 = -35.15%