72.05% is the change from 297 to 511
Calculation steps:
[( 511 - 297 ) ÷ 297] x 100 = 72.05%
Formula
Percentage change = [(511 - 297) / 297] x 100
Subtract the new number by the original number
511 - 297 = 214
214 ÷ 297 = 0.7205387205387206
0.7205387205387206 x 100 = 72.05%