-70.26% is the change from 343 to 102
Calculation steps:
[( 102 - 343 ) ÷ 343] x 100 = -70.26%
Formula
Percentage change = [(102 - 343) / 343] x 100
Subtract the new number by the original number
102 - 343 = -241
-241 ÷ 343 = -0.7026239067055393
-0.7026239067055393 x 100 = -70.26%