10.83% is the change from 277 to 307
Calculation steps:
[( 307 - 277 ) ÷ 277] x 100 = 10.83%
Formula
Percentage change = [(307 - 277) / 277] x 100
Subtract the new number by the original number
307 - 277 = 30
30 ÷ 277 = 0.10830324909747292
0.10830324909747292 x 100 = 10.83%