134.21% is the change from 228 to 534
Calculation steps:
[( 534 - 228 ) ÷ 228] x 100 = 134.21%
Formula
Percentage change = [(534 - 228) / 228] x 100
Subtract the new number by the original number
534 - 228 = 306
306 ÷ 228 = 1.3421052631578947
1.3421052631578947 x 100 = 134.21%