-91.91% is the change from 371 to 30
Calculation steps:
[( 30 - 371 ) ÷ 371] x 100 = -91.91%
Formula
Percentage change = [(30 - 371) / 371] x 100
Subtract the new number by the original number
30 - 371 = -341
-341 ÷ 371 = -0.9191374663072777
-0.9191374663072777 x 100 = -91.91%