27.91% is the change from 602 to 770
Calculation steps:
[( 770 - 602 ) ÷ 602] x 100 = 27.91%
Formula
Percentage change = [(770 - 602) / 602] x 100
Subtract the new number by the original number
770 - 602 = 168
168 ÷ 602 = 0.27906976744186046
0.27906976744186046 x 100 = 27.91%