-39.08% is the change from 348 to 212
Calculation steps:
[( 212 - 348 ) ÷ 348] x 100 = -39.08%
Formula
Percentage change = [(212 - 348) / 348] x 100
Subtract the new number by the original number
212 - 348 = -136
-136 ÷ 348 = -0.39080459770114945
-0.39080459770114945 x 100 = -39.08%