71.8% is the change from 305 to 524
Calculation steps:
[( 524 - 305 ) ÷ 305] x 100 = 71.8%
Formula
Percentage change = [(524 - 305) / 305] x 100
Subtract the new number by the original number
524 - 305 = 219
219 ÷ 305 = 0.7180327868852459
0.7180327868852459 x 100 = 71.8%