-72.67% is the change from 644 to 176
Calculation steps:
[( 176 - 644 ) ÷ 644] x 100 = -72.67%
Formula
Percentage change = [(176 - 644) / 644] x 100
Subtract the new number by the original number
176 - 644 = -468
-468 ÷ 644 = -0.7267080745341615
-0.7267080745341615 x 100 = -72.67%