-38.01% is the change from 342 to 212
Calculation steps:
[( 212 - 342 ) ÷ 342] x 100 = -38.01%
Formula
Percentage change = [(212 - 342) / 342] x 100
Subtract the new number by the original number
212 - 342 = -130
-130 ÷ 342 = -0.38011695906432746
-0.38011695906432746 x 100 = -38.01%