78.26% is the change from 276 to 492
Calculation steps:
[( 492 - 276 ) ÷ 276] x 100 = 78.26%
Formula
Percentage change = [(492 - 276) / 276] x 100
Subtract the new number by the original number
492 - 276 = 216
216 ÷ 276 = 0.782608695652174
0.782608695652174 x 100 = 78.26%