-52.34% is the change from 342 to 163
Calculation steps:
[( 163 - 342 ) ÷ 342] x 100 = -52.34%
Formula
Percentage change = [(163 - 342) / 342] x 100
Subtract the new number by the original number
163 - 342 = -179
-179 ÷ 342 = -0.5233918128654971
-0.5233918128654971 x 100 = -52.34%