101.3% is the change from 386 to 777
Calculation steps:
[( 777 - 386 ) ÷ 386] x 100 = 101.3%
Formula
Percentage change = [(777 - 386) / 386] x 100
Subtract the new number by the original number
777 - 386 = 391
391 ÷ 386 = 1.0129533678756477
1.0129533678756477 x 100 = 101.3%