-97.22% is the change from 216 to 6
Calculation steps:
[( 6 - 216 ) ÷ 216] x 100 = -97.22%
Formula
Percentage change = [(6 - 216) / 216] x 100
Subtract the new number by the original number
6 - 216 = -210
-210 ÷ 216 = -0.9722222222222222
-0.9722222222222222 x 100 = -97.22%