3.76% is the change from 213 to 221
Calculation steps:
[( 221 - 213 ) ÷ 213] x 100 = 3.76%
Formula
Percentage change = [(221 - 213) / 213] x 100
Subtract the new number by the original number
221 - 213 = 8
8 ÷ 213 = 0.03755868544600939
0.03755868544600939 x 100 = 3.76%