-78.13% is the change from 983 to 215
Calculation steps:
[( 215 - 983 ) ÷ 983] x 100 = -78.13%
Formula
Percentage change = [(215 - 983) / 983] x 100
Subtract the new number by the original number
215 - 983 = -768
-768 ÷ 983 = -0.7812817904374364
-0.7812817904374364 x 100 = -78.13%