-49.88% is the change from 429 to 215
Calculation steps:
[( 215 - 429 ) ÷ 429] x 100 = -49.88%
Formula
Percentage change = [(215 - 429) / 429] x 100
Subtract the new number by the original number
215 - 429 = -214
-214 ÷ 429 = -0.4988344988344988
-0.4988344988344988 x 100 = -49.88%