36.76% is the change from 642 to 878
Calculation steps:
[( 878 - 642 ) ÷ 642] x 100 = 36.76%
Formula
Percentage change = [(878 - 642) / 642] x 100
Subtract the new number by the original number
878 - 642 = 236
236 ÷ 642 = 0.367601246105919
0.367601246105919 x 100 = 36.76%