77.26% is the change from 277 to 491
Calculation steps:
[( 491 - 277 ) ÷ 277] x 100 = 77.26%
Formula
Percentage change = [(491 - 277) / 277] x 100
Subtract the new number by the original number
491 - 277 = 214
214 ÷ 277 = 0.7725631768953068
0.7725631768953068 x 100 = 77.26%