81.03% is the change from 290 to 525
Calculation steps:
[( 525 - 290 ) ÷ 290] x 100 = 81.03%
Formula
Percentage change = [(525 - 290) / 290] x 100
Subtract the new number by the original number
525 - 290 = 235
235 ÷ 290 = 0.8103448275862069
0.8103448275862069 x 100 = 81.03%