56.43% is the change from 342 to 535
Calculation steps:
[( 535 - 342 ) ÷ 342] x 100 = 56.43%
Formula
Percentage change = [(535 - 342) / 342] x 100
Subtract the new number by the original number
535 - 342 = 193
193 ÷ 342 = 0.564327485380117
0.564327485380117 x 100 = 56.43%