-84.49% is the change from 993 to 154
Calculation steps:
[( 154 - 993 ) ÷ 993] x 100 = -84.49%
Formula
Percentage change = [(154 - 993) / 993] x 100
Subtract the new number by the original number
154 - 993 = -839
-839 ÷ 993 = -0.8449144008056395
-0.8449144008056395 x 100 = -84.49%