-51.05% is the change from 429 to 210
Calculation steps:
[( 210 - 429 ) ÷ 429] x 100 = -51.05%
Formula
Percentage change = [(210 - 429) / 429] x 100
Subtract the new number by the original number
210 - 429 = -219
-219 ÷ 429 = -0.5104895104895105
-0.5104895104895105 x 100 = -51.05%