21.21% is the change from 198 to 240
Calculation steps:
[( 240 - 198 ) ÷ 198] x 100 = 21.21%
Formula
Percentage change = [(240 - 198) / 198] x 100
Subtract the new number by the original number
240 - 198 = 42
42 ÷ 198 = 0.21212121212121213
0.21212121212121213 x 100 = 21.21%