-86.91% is the change from 191 to 25
Calculation steps:
[( 25 - 191 ) ÷ 191] x 100 = -86.91%
Formula
Percentage change = [(25 - 191) / 191] x 100
Subtract the new number by the original number
25 - 191 = -166
-166 ÷ 191 = -0.8691099476439791
-0.8691099476439791 x 100 = -86.91%