-58.04% is the change from 634 to 266
Calculation steps:
[( 266 - 634 ) ÷ 634] x 100 = -58.04%
Formula
Percentage change = [(266 - 634) / 634] x 100
Subtract the new number by the original number
266 - 634 = -368
-368 ÷ 634 = -0.580441640378549
-0.580441640378549 x 100 = -58.04%