-71.73% is the change from 191 to 54
Calculation steps:
[( 54 - 191 ) ÷ 191] x 100 = -71.73%
Formula
Percentage change = [(54 - 191) / 191] x 100
Subtract the new number by the original number
54 - 191 = -137
-137 ÷ 191 = -0.7172774869109948
-0.7172774869109948 x 100 = -71.73%