13.72% is the change from 277 to 315
Calculation steps:
[( 315 - 277 ) ÷ 277] x 100 = 13.72%
Formula
Percentage change = [(315 - 277) / 277] x 100
Subtract the new number by the original number
315 - 277 = 38
38 ÷ 277 = 0.1371841155234657
0.1371841155234657 x 100 = 13.72%