-70.67% is the change from 341 to 100
Calculation steps:
[( 100 - 341 ) ÷ 341] x 100 = -70.67%
Formula
Percentage change = [(100 - 341) / 341] x 100
Subtract the new number by the original number
100 - 341 = -241
-241 ÷ 341 = -0.7067448680351907
-0.7067448680351907 x 100 = -70.67%