-47.11% is the change from 242 to 128
Calculation steps:
[( 128 - 242 ) ÷ 242] x 100 = -47.11%
Formula
Percentage change = [(128 - 242) / 242] x 100
Subtract the new number by the original number
128 - 242 = -114
-114 ÷ 242 = -0.47107438016528924
-0.47107438016528924 x 100 = -47.11%