-67.35% is the change from 634 to 207
Calculation steps:
[( 207 - 634 ) ÷ 634] x 100 = -67.35%
Formula
Percentage change = [(207 - 634) / 634] x 100
Subtract the new number by the original number
207 - 634 = -427
-427 ÷ 634 = -0.6735015772870663
-0.6735015772870663 x 100 = -67.35%