21.67% is the change from 669 to 814
Calculation steps:
[( 814 - 669 ) ÷ 669] x 100 = 21.67%
Formula
Percentage change = [(814 - 669) / 669] x 100
Subtract the new number by the original number
814 - 669 = 145
145 ÷ 669 = 0.21674140508221226
0.21674140508221226 x 100 = 21.67%