-53.97% is the change from 643 to 296
Calculation steps:
[( 296 - 643 ) ÷ 643] x 100 = -53.97%
Formula
Percentage change = [(296 - 643) / 643] x 100
Subtract the new number by the original number
296 - 643 = -347
-347 ÷ 643 = -0.5396578538102644
-0.5396578538102644 x 100 = -53.97%