85.77% is the change from 274 to 509
Calculation steps:
[( 509 - 274 ) ÷ 274] x 100 = 85.77%
Formula
Percentage change = [(509 - 274) / 274] x 100
Subtract the new number by the original number
509 - 274 = 235
235 ÷ 274 = 0.8576642335766423
0.8576642335766423 x 100 = 85.77%