-70.16% is the change from 191 to 57
Calculation steps:
[( 57 - 191 ) ÷ 191] x 100 = -70.16%
Formula
Percentage change = [(57 - 191) / 191] x 100
Subtract the new number by the original number
57 - 191 = -134
-134 ÷ 191 = -0.7015706806282722
-0.7015706806282722 x 100 = -70.16%