0.9% is the change from 221 to 223
Calculation steps:
[( 223 - 221 ) ÷ 221] x 100 = 0.9%
Formula
Percentage change = [(223 - 221) / 221] x 100
Subtract the new number by the original number
223 - 221 = 2
2 ÷ 221 = 0.00904977375565611
0.00904977375565611 x 100 = 0.9%