71.48% is the change from 298 to 511
Calculation steps:
[( 511 - 298 ) ÷ 298] x 100 = 71.48%
Formula
Percentage change = [(511 - 298) / 298] x 100
Subtract the new number by the original number
511 - 298 = 213
213 ÷ 298 = 0.714765100671141
0.714765100671141 x 100 = 71.48%