67.92% is the change from 318 to 534
Calculation steps:
[( 534 - 318 ) ÷ 318] x 100 = 67.92%
Formula
Percentage change = [(534 - 318) / 318] x 100
Subtract the new number by the original number
534 - 318 = 216
216 ÷ 318 = 0.6792452830188679
0.6792452830188679 x 100 = 67.92%