268.28% is the change from 145 to 534
Calculation steps:
[( 534 - 145 ) ÷ 145] x 100 = 268.28%
Formula
Percentage change = [(534 - 145) / 145] x 100
Subtract the new number by the original number
534 - 145 = 389
389 ÷ 145 = 2.682758620689655
2.682758620689655 x 100 = 268.28%