81.21% is the change from 298 to 540
Calculation steps:
[( 540 - 298 ) ÷ 298] x 100 = 81.21%
Formula
Percentage change = [(540 - 298) / 298] x 100
Subtract the new number by the original number
540 - 298 = 242
242 ÷ 298 = 0.8120805369127517
0.8120805369127517 x 100 = 81.21%