82.67% is the change from 277 to 506
Calculation steps:
[( 506 - 277 ) ÷ 277] x 100 = 82.67%
Formula
Percentage change = [(506 - 277) / 277] x 100
Subtract the new number by the original number
506 - 277 = 229
229 ÷ 277 = 0.8267148014440433
0.8267148014440433 x 100 = 82.67%