71.1% is the change from 308 to 527
Calculation steps:
[( 527 - 308 ) ÷ 308] x 100 = 71.1%
Formula
Percentage change = [(527 - 308) / 308] x 100
Subtract the new number by the original number
527 - 308 = 219
219 ÷ 308 = 0.711038961038961
0.711038961038961 x 100 = 71.1%