-93.89% is the change from 311 to 19
Calculation steps:
[( 19 - 311 ) ÷ 311] x 100 = -93.89%
Formula
Percentage change = [(19 - 311) / 311] x 100
Subtract the new number by the original number
19 - 311 = -292
-292 ÷ 311 = -0.9389067524115756
-0.9389067524115756 x 100 = -93.89%