-6.6% is the change from 212 to 198
Calculation steps:
[( 198 - 212 ) ÷ 212] x 100 = -6.6%
Formula
Percentage change = [(198 - 212) / 212] x 100
Subtract the new number by the original number
198 - 212 = -14
-14 ÷ 212 = -0.0660377358490566
-0.0660377358490566 x 100 = -6.6%