177.98% is the change from 277 to 770
Calculation steps:
[( 770 - 277 ) ÷ 277] x 100 = 177.98%
Formula
Percentage change = [(770 - 277) / 277] x 100
Subtract the new number by the original number
770 - 277 = 493
493 ÷ 277 = 1.779783393501805
1.779783393501805 x 100 = 177.98%