39.25% is the change from 642 to 894
Calculation steps:
[( 894 - 642 ) ÷ 642] x 100 = 39.25%
Formula
Percentage change = [(894 - 642) / 642] x 100
Subtract the new number by the original number
894 - 642 = 252
252 ÷ 642 = 0.3925233644859813
0.3925233644859813 x 100 = 39.25%