-59.78% is the change from 644 to 259
Calculation steps:
[( 259 - 644 ) ÷ 644] x 100 = -59.78%
Formula
Percentage change = [(259 - 644) / 644] x 100
Subtract the new number by the original number
259 - 644 = -385
-385 ÷ 644 = -0.5978260869565217
-0.5978260869565217 x 100 = -59.78%