-26.4% is the change from 644 to 474
Calculation steps:
[( 474 - 644 ) ÷ 644] x 100 = -26.4%
Formula
Percentage change = [(474 - 644) / 644] x 100
Subtract the new number by the original number
474 - 644 = -170
-170 ÷ 644 = -0.2639751552795031
-0.2639751552795031 x 100 = -26.4%