-45.61% is the change from 342 to 186
Calculation steps:
[( 186 - 342 ) ÷ 342] x 100 = -45.61%
Formula
Percentage change = [(186 - 342) / 342] x 100
Subtract the new number by the original number
186 - 342 = -156
-156 ÷ 342 = -0.45614035087719296
-0.45614035087719296 x 100 = -45.61%