-53.65% is the change from 643 to 298
Calculation steps:
[( 298 - 643 ) ÷ 643] x 100 = -53.65%
Formula
Percentage change = [(298 - 643) / 643] x 100
Subtract the new number by the original number
298 - 643 = -345
-345 ÷ 643 = -0.536547433903577
-0.536547433903577 x 100 = -53.65%