255.6% is the change from 277 to 985
Calculation steps:
[( 985 - 277 ) ÷ 277] x 100 = 255.6%
Formula
Percentage change = [(985 - 277) / 277] x 100
Subtract the new number by the original number
985 - 277 = 708
708 ÷ 277 = 2.555956678700361
2.555956678700361 x 100 = 255.6%