81.4% is the change from 242 to 439
Calculation steps:
[( 439 - 242 ) ÷ 242] x 100 = 81.4%
Formula
Percentage change = [(439 - 242) / 242] x 100
Subtract the new number by the original number
439 - 242 = 197
197 ÷ 242 = 0.8140495867768595
0.8140495867768595 x 100 = 81.4%