-80.63% is the change from 191 to 37
Calculation steps:
[( 37 - 191 ) ÷ 191] x 100 = -80.63%
Formula
Percentage change = [(37 - 191) / 191] x 100
Subtract the new number by the original number
37 - 191 = -154
-154 ÷ 191 = -0.806282722513089
-0.806282722513089 x 100 = -80.63%