-56.31% is the change from 634 to 277
Calculation steps:
[( 277 - 634 ) ÷ 634] x 100 = -56.31%
Formula
Percentage change = [(277 - 634) / 634] x 100
Subtract the new number by the original number
277 - 634 = -357
-357 ÷ 634 = -0.5630914826498423
-0.5630914826498423 x 100 = -56.31%