-3.29% is the change from 213 to 206
Calculation steps:
[( 206 - 213 ) ÷ 213] x 100 = -3.29%
Formula
Percentage change = [(206 - 213) / 213] x 100
Subtract the new number by the original number
206 - 213 = -7
-7 ÷ 213 = -0.03286384976525822
-0.03286384976525822 x 100 = -3.29%