37.26% is the change from 671 to 921
Calculation steps:
[( 921 - 671 ) ÷ 671] x 100 = 37.26%
Formula
Percentage change = [(921 - 671) / 671] x 100
Subtract the new number by the original number
921 - 671 = 250
250 ÷ 671 = 0.37257824143070045
0.37257824143070045 x 100 = 37.26%