12.2% is the change from 574 to 644
Calculation steps:
[( 644 - 574 ) ÷ 574] x 100 = 12.2%
Formula
Percentage change = [(644 - 574) / 574] x 100
Subtract the new number by the original number
644 - 574 = 70
70 ÷ 574 = 0.12195121951219512
0.12195121951219512 x 100 = 12.2%