121.4% is the change from 243 to 538
Calculation steps:
[( 538 - 243 ) ÷ 243] x 100 = 121.4%
Formula
Percentage change = [(538 - 243) / 243] x 100
Subtract the new number by the original number
538 - 243 = 295
295 ÷ 243 = 1.213991769547325
1.213991769547325 x 100 = 121.4%