-66.96% is the change from 687 to 227
Calculation steps:
[( 227 - 687 ) ÷ 687] x 100 = -66.96%
Formula
Percentage change = [(227 - 687) / 687] x 100
Subtract the new number by the original number
227 - 687 = -460
-460 ÷ 687 = -0.6695778748180495
-0.6695778748180495 x 100 = -66.96%