-77.81% is the change from 969 to 215
Calculation steps:
[( 215 - 969 ) ÷ 969] x 100 = -77.81%
Formula
Percentage change = [(215 - 969) / 969] x 100
Subtract the new number by the original number
215 - 969 = -754
-754 ÷ 969 = -0.7781217750257998
-0.7781217750257998 x 100 = -77.81%