-86.45% is the change from 391 to 53
Calculation steps:
[( 53 - 391 ) ÷ 391] x 100 = -86.45%
Formula
Percentage change = [(53 - 391) / 391] x 100
Subtract the new number by the original number
53 - 391 = -338
-338 ÷ 391 = -0.8644501278772379
-0.8644501278772379 x 100 = -86.45%