-76.17% is the change from 642 to 153
Calculation steps:
[( 153 - 642 ) ÷ 642] x 100 = -76.17%
Formula
Percentage change = [(153 - 642) / 642] x 100
Subtract the new number by the original number
153 - 642 = -489
-489 ÷ 642 = -0.7616822429906542
-0.7616822429906542 x 100 = -76.17%