-35.92% is the change from 309 to 198
Calculation steps:
[( 198 - 309 ) ÷ 309] x 100 = -35.92%
Formula
Percentage change = [(198 - 309) / 309] x 100
Subtract the new number by the original number
198 - 309 = -111
-111 ÷ 309 = -0.3592233009708738
-0.3592233009708738 x 100 = -35.92%