198.77% is the change from 81 to 242
Calculation steps:
[( 242 - 81 ) ÷ 81] x 100 = 198.77%
Formula
Percentage change = [(242 - 81) / 81] x 100
Subtract the new number by the original number
242 - 81 = 161
161 ÷ 81 = 1.9876543209876543
1.9876543209876543 x 100 = 198.77%