-17.36% is the change from 242 to 200
Calculation steps:
[( 200 - 242 ) ÷ 242] x 100 = -17.36%
Formula
Percentage change = [(200 - 242) / 242] x 100
Subtract the new number by the original number
200 - 242 = -42
-42 ÷ 242 = -0.17355371900826447
-0.17355371900826447 x 100 = -17.36%