-77.7% is the change from 964 to 215
Calculation steps:
[( 215 - 964 ) ÷ 964] x 100 = -77.7%
Formula
Percentage change = [(215 - 964) / 964] x 100
Subtract the new number by the original number
215 - 964 = -749
-749 ÷ 964 = -0.7769709543568465
-0.7769709543568465 x 100 = -77.7%