56.5% is the change from 492 to 770
Calculation steps:
[( 770 - 492 ) ÷ 492] x 100 = 56.5%
Formula
Percentage change = [(770 - 492) / 492] x 100
Subtract the new number by the original number
770 - 492 = 278
278 ÷ 492 = 0.5650406504065041
0.5650406504065041 x 100 = 56.5%