-78.15% is the change from 984 to 215
Calculation steps:
[( 215 - 984 ) ÷ 984] x 100 = -78.15%
Formula
Percentage change = [(215 - 984) / 984] x 100
Subtract the new number by the original number
215 - 984 = -769
-769 ÷ 984 = -0.7815040650406504
-0.7815040650406504 x 100 = -78.15%