-2.76% is the change from 217 to 211
Calculation steps:
[( 211 - 217 ) ÷ 217] x 100 = -2.76%
Formula
Percentage change = [(211 - 217) / 217] x 100
Subtract the new number by the original number
211 - 217 = -6
-6 ÷ 217 = -0.027649769585253458
-0.027649769585253458 x 100 = -2.76%