75.44% is the change from 171 to 300
Calculation steps:
[( 300 - 171 ) ÷ 171] x 100 = 75.44%
Formula
Percentage change = [(300 - 171) / 171] x 100
Subtract the new number by the original number
300 - 171 = 129
129 ÷ 171 = 0.7543859649122807
0.7543859649122807 x 100 = 75.44%