42.24% is the change from 277 to 394
Calculation steps:
[( 394 - 277 ) ÷ 277] x 100 = 42.24%
Formula
Percentage change = [(394 - 277) / 277] x 100
Subtract the new number by the original number
394 - 277 = 117
117 ÷ 277 = 0.4223826714801444
0.4223826714801444 x 100 = 42.24%