-84.65% is the change from 997 to 153
Calculation steps:
[( 153 - 997 ) ÷ 997] x 100 = -84.65%
Formula
Percentage change = [(153 - 997) / 997] x 100
Subtract the new number by the original number
153 - 997 = -844
-844 ÷ 997 = -0.8465396188565697
-0.8465396188565697 x 100 = -84.65%