78.92% is the change from 223 to 399
Calculation steps:
[( 399 - 223 ) ÷ 223] x 100 = 78.92%
Formula
Percentage change = [(399 - 223) / 223] x 100
Subtract the new number by the original number
399 - 223 = 176
176 ÷ 223 = 0.7892376681614349
0.7892376681614349 x 100 = 78.92%