392.86% is the change from 42 to 207
Calculation steps:
[( 207 - 42 ) ÷ 42] x 100 = 392.86%
Formula
Percentage change = [(207 - 42) / 42] x 100
Subtract the new number by the original number
207 - 42 = 165
165 ÷ 42 = 3.9285714285714284
3.9285714285714284 x 100 = 392.86%