-53.81% is the change from 197 to 91
Calculation steps:
[( 91 - 197 ) ÷ 197] x 100 = -53.81%
Formula
Percentage change = [(91 - 197) / 197] x 100
Subtract the new number by the original number
91 - 197 = -106
-106 ÷ 197 = -0.5380710659898477
-0.5380710659898477 x 100 = -53.81%