21.17% is the change from 770 to 933
Calculation steps:
[( 933 - 770 ) ÷ 770] x 100 = 21.17%
Formula
Percentage change = [(933 - 770) / 770] x 100
Subtract the new number by the original number
933 - 770 = 163
163 ÷ 770 = 0.21168831168831168
0.21168831168831168 x 100 = 21.17%