-77.34% is the change from 949 to 215
Calculation steps:
[( 215 - 949 ) ÷ 949] x 100 = -77.34%
Formula
Percentage change = [(215 - 949) / 949] x 100
Subtract the new number by the original number
215 - 949 = -734
-734 ÷ 949 = -0.7734457323498419
-0.7734457323498419 x 100 = -77.34%