79.56% is the change from 274 to 492
Calculation steps:
[( 492 - 274 ) ÷ 274] x 100 = 79.56%
Formula
Percentage change = [(492 - 274) / 274] x 100
Subtract the new number by the original number
492 - 274 = 218
218 ÷ 274 = 0.7956204379562044
0.7956204379562044 x 100 = 79.56%