79.48% is the change from 307 to 551
Calculation steps:
[( 551 - 307 ) ÷ 307] x 100 = 79.48%
Formula
Percentage change = [(551 - 307) / 307] x 100
Subtract the new number by the original number
551 - 307 = 244
244 ÷ 307 = 0.7947882736156352
0.7947882736156352 x 100 = 79.48%