-0.51% is the change from 197 to 196
Calculation steps:
[( 196 - 197 ) ÷ 197] x 100 = -0.51%
Formula
Percentage change = [(196 - 197) / 197] x 100
Subtract the new number by the original number
196 - 197 = -1
-1 ÷ 197 = -0.005076142131979695
-0.005076142131979695 x 100 = -0.51%