-51.05% is the change from 143 to 70
Calculation steps:
[( 70 - 143 ) ÷ 143] x 100 = -51.05%
Formula
Percentage change = [(70 - 143) / 143] x 100
Subtract the new number by the original number
70 - 143 = -73
-73 ÷ 143 = -0.5104895104895105
-0.5104895104895105 x 100 = -51.05%