-46.52% is the change from 402 to 215
Calculation steps:
[( 215 - 402 ) ÷ 402] x 100 = -46.52%
Formula
Percentage change = [(215 - 402) / 402] x 100
Subtract the new number by the original number
215 - 402 = -187
-187 ÷ 402 = -0.4651741293532338
-0.4651741293532338 x 100 = -46.52%