-36.93% is the change from 306 to 193
Calculation steps:
[( 193 - 306 ) ÷ 306] x 100 = -36.93%
Formula
Percentage change = [(193 - 306) / 306] x 100
Subtract the new number by the original number
193 - 306 = -113
-113 ÷ 306 = -0.369281045751634
-0.369281045751634 x 100 = -36.93%