72.88% is the change from 177 to 306
Calculation steps:
[( 306 - 177 ) ÷ 177] x 100 = 72.88%
Formula
Percentage change = [(306 - 177) / 177] x 100
Subtract the new number by the original number
306 - 177 = 129
129 ÷ 177 = 0.7288135593220338
0.7288135593220338 x 100 = 72.88%