189.47% is the change from 342 to 990
Calculation steps:
[( 990 - 342 ) ÷ 342] x 100 = 189.47%
Formula
Percentage change = [(990 - 342) / 342] x 100
Subtract the new number by the original number
990 - 342 = 648
648 ÷ 342 = 1.894736842105263
1.894736842105263 x 100 = 189.47%