-52.05% is the change from 342 to 164
Calculation steps:
[( 164 - 342 ) ÷ 342] x 100 = -52.05%
Formula
Percentage change = [(164 - 342) / 342] x 100
Subtract the new number by the original number
164 - 342 = -178
-178 ÷ 342 = -0.52046783625731
-0.52046783625731 x 100 = -52.05%