20% is the change from 770 to 924
Calculation steps:
[( 924 - 770 ) ÷ 770] x 100 = 20%
Formula
Percentage change = [(924 - 770) / 770] x 100
Subtract the new number by the original number
924 - 770 = 154
154 ÷ 770 = 0.2
0.2 x 100 = 20%
Example