-76.35% is the change from 909 to 215
Calculation steps:
[( 215 - 909 ) ÷ 909] x 100 = -76.35%
Formula
Percentage change = [(215 - 909) / 909] x 100
Subtract the new number by the original number
215 - 909 = -694
-694 ÷ 909 = -0.7634763476347635
-0.7634763476347635 x 100 = -76.35%