78.03% is the change from 305 to 543
Calculation steps:
[( 543 - 305 ) ÷ 305] x 100 = 78.03%
Formula
Percentage change = [(543 - 305) / 305] x 100
Subtract the new number by the original number
543 - 305 = 238
238 ÷ 305 = 0.780327868852459
0.780327868852459 x 100 = 78.03%