298.51% is the change from 134 to 534
Calculation steps:
[( 534 - 134 ) ÷ 134] x 100 = 298.51%
Formula
Percentage change = [(534 - 134) / 134] x 100
Subtract the new number by the original number
534 - 134 = 400
400 ÷ 134 = 2.985074626865672
2.985074626865672 x 100 = 298.51%