-95.65% is the change from 391 to 17
Calculation steps:
[( 17 - 391 ) ÷ 391] x 100 = -95.65%
Formula
Percentage change = [(17 - 391) / 391] x 100
Subtract the new number by the original number
17 - 391 = -374
-374 ÷ 391 = -0.9565217391304348
-0.9565217391304348 x 100 = -95.65%