378.26% is the change from 138 to 660
Calculation steps:
[( 660 - 138 ) ÷ 138] x 100 = 378.26%
Formula
Percentage change = [(660 - 138) / 138] x 100
Subtract the new number by the original number
660 - 138 = 522
522 ÷ 138 = 3.782608695652174
3.782608695652174 x 100 = 378.26%