-64.84% is the change from 620 to 218
Calculation steps:
[( 218 - 620 ) ÷ 620] x 100 = -64.84%
Formula
Percentage change = [(218 - 620) / 620] x 100
Subtract the new number by the original number
218 - 620 = -402
-402 ÷ 620 = -0.6483870967741936
-0.6483870967741936 x 100 = -64.84%