77.45% is the change from 306 to 543
Calculation steps:
[( 543 - 306 ) ÷ 306] x 100 = 77.45%
Formula
Percentage change = [(543 - 306) / 306] x 100
Subtract the new number by the original number
543 - 306 = 237
237 ÷ 306 = 0.7745098039215687
0.7745098039215687 x 100 = 77.45%