-16.35% is the change from 997 to 834
Calculation steps:
[( 834 - 997 ) ÷ 997] x 100 = -16.35%
Formula
Percentage change = [(834 - 997) / 997] x 100
Subtract the new number by the original number
834 - 997 = -163
-163 ÷ 997 = -0.16349047141424272
-0.16349047141424272 x 100 = -16.35%