-48.4% is the change from 343 to 177
Calculation steps:
[( 177 - 343 ) ÷ 343] x 100 = -48.4%
Formula
Percentage change = [(177 - 343) / 343] x 100
Subtract the new number by the original number
177 - 343 = -166
-166 ÷ 343 = -0.4839650145772595
-0.4839650145772595 x 100 = -48.4%