-45.07% is the change from 142 to 78
Calculation steps:
[( 78 - 142 ) ÷ 142] x 100 = -45.07%
Formula
Percentage change = [(78 - 142) / 142] x 100
Subtract the new number by the original number
78 - 142 = -64
-64 ÷ 142 = -0.4507042253521127
-0.4507042253521127 x 100 = -45.07%