76.04% is the change from 288 to 507
Calculation steps:
[( 507 - 288 ) ÷ 288] x 100 = 76.04%
Formula
Percentage change = [(507 - 288) / 288] x 100
Subtract the new number by the original number
507 - 288 = 219
219 ÷ 288 = 0.7604166666666666
0.7604166666666666 x 100 = 76.04%