-43.08% is the change from 643 to 366
Calculation steps:
[( 366 - 643 ) ÷ 643] x 100 = -43.08%
Formula
Percentage change = [(366 - 643) / 643] x 100
Subtract the new number by the original number
366 - 643 = -277
-277 ÷ 643 = -0.4307931570762053
-0.4307931570762053 x 100 = -43.08%