-93.94% is the change from 198 to 12
Calculation steps:
[( 12 - 198 ) ÷ 198] x 100 = -93.94%
Formula
Percentage change = [(12 - 198) / 198] x 100
Subtract the new number by the original number
12 - 198 = -186
-186 ÷ 198 = -0.9393939393939394
-0.9393939393939394 x 100 = -93.94%