22.42% is the change from 669 to 819
Calculation steps:
[( 819 - 669 ) ÷ 669] x 100 = 22.42%
Formula
Percentage change = [(819 - 669) / 669] x 100
Subtract the new number by the original number
819 - 669 = 150
150 ÷ 669 = 0.2242152466367713
0.2242152466367713 x 100 = 22.42%