-78.04% is the change from 642 to 141
Calculation steps:
[( 141 - 642 ) ÷ 642] x 100 = -78.04%
Formula
Percentage change = [(141 - 642) / 642] x 100
Subtract the new number by the original number
141 - 642 = -501
-501 ÷ 642 = -0.780373831775701
-0.780373831775701 x 100 = -78.04%