81.91% is the change from 188 to 342
Calculation steps:
[( 342 - 188 ) ÷ 188] x 100 = 81.91%
Formula
Percentage change = [(342 - 188) / 188] x 100
Subtract the new number by the original number
342 - 188 = 154
154 ÷ 188 = 0.8191489361702128
0.8191489361702128 x 100 = 81.91%