84.48% is the change from 277 to 511
Calculation steps:
[( 511 - 277 ) ÷ 277] x 100 = 84.48%
Formula
Percentage change = [(511 - 277) / 277] x 100
Subtract the new number by the original number
511 - 277 = 234
234 ÷ 277 = 0.8447653429602888
0.8447653429602888 x 100 = 84.48%