-87.96% is the change from 191 to 23
Calculation steps:
[( 23 - 191 ) ÷ 191] x 100 = -87.96%
Formula
Percentage change = [(23 - 191) / 191] x 100
Subtract the new number by the original number
23 - 191 = -168
-168 ÷ 191 = -0.8795811518324608
-0.8795811518324608 x 100 = -87.96%