-68.52% is the change from 667 to 210
Calculation steps:
[( 210 - 667 ) ÷ 667] x 100 = -68.52%
Formula
Percentage change = [(210 - 667) / 667] x 100
Subtract the new number by the original number
210 - 667 = -457
-457 ÷ 667 = -0.6851574212893553
-0.6851574212893553 x 100 = -68.52%