91.23% is the change from 342 to 654
Calculation steps:
[( 654 - 342 ) ÷ 342] x 100 = 91.23%
Formula
Percentage change = [(654 - 342) / 342] x 100
Subtract the new number by the original number
654 - 342 = 312
312 ÷ 342 = 0.9122807017543859
0.9122807017543859 x 100 = 91.23%