-93.81% is the change from 307 to 19
Calculation steps:
[( 19 - 307 ) ÷ 307] x 100 = -93.81%
Formula
Percentage change = [(19 - 307) / 307] x 100
Subtract the new number by the original number
19 - 307 = -288
-288 ÷ 307 = -0.9381107491856677
-0.9381107491856677 x 100 = -93.81%