-31.52% is the change from 644 to 441
Calculation steps:
[( 441 - 644 ) ÷ 644] x 100 = -31.52%
Formula
Percentage change = [(441 - 644) / 644] x 100
Subtract the new number by the original number
441 - 644 = -203
-203 ÷ 644 = -0.31521739130434784
-0.31521739130434784 x 100 = -31.52%