-2.31% is the change from 216 to 211
Calculation steps:
[( 211 - 216 ) ÷ 216] x 100 = -2.31%
Formula
Percentage change = [(211 - 216) / 216] x 100
Subtract the new number by the original number
211 - 216 = -5
-5 ÷ 216 = -0.023148148148148147
-0.023148148148148147 x 100 = -2.31%