259.93% is the change from 277 to 997
Calculation steps:
[( 997 - 277 ) ÷ 277] x 100 = 259.93%
Formula
Percentage change = [(997 - 277) / 277] x 100
Subtract the new number by the original number
997 - 277 = 720
720 ÷ 277 = 2.5992779783393503
2.5992779783393503 x 100 = 259.93%