-18.63% is the change from 644 to 524
Calculation steps:
[( 524 - 644 ) ÷ 644] x 100 = -18.63%
Formula
Percentage change = [(524 - 644) / 644] x 100
Subtract the new number by the original number
524 - 644 = -120
-120 ÷ 644 = -0.18633540372670807
-0.18633540372670807 x 100 = -18.63%