-41.99% is the change from 643 to 373
Calculation steps:
[( 373 - 643 ) ÷ 643] x 100 = -41.99%
Formula
Percentage change = [(373 - 643) / 643] x 100
Subtract the new number by the original number
373 - 643 = -270
-270 ÷ 643 = -0.4199066874027994
-0.4199066874027994 x 100 = -41.99%