38.94% is the change from 642 to 892
Calculation steps:
[( 892 - 642 ) ÷ 642] x 100 = 38.94%
Formula
Percentage change = [(892 - 642) / 642] x 100
Subtract the new number by the original number
892 - 642 = 250
250 ÷ 642 = 0.3894080996884735
0.3894080996884735 x 100 = 38.94%