27.21% is the change from 768 to 977
Calculation steps:
[( 977 - 768 ) ÷ 768] x 100 = 27.21%
Formula
Percentage change = [(977 - 768) / 768] x 100
Subtract the new number by the original number
977 - 768 = 209
209 ÷ 768 = 0.2721354166666667
0.2721354166666667 x 100 = 27.21%