-36.05% is the change from 688 to 440
Calculation steps:
[( 440 - 688 ) ÷ 688] x 100 = -36.05%
Formula
Percentage change = [(440 - 688) / 688] x 100
Subtract the new number by the original number
440 - 688 = -248
-248 ÷ 688 = -0.36046511627906974
-0.36046511627906974 x 100 = -36.05%