-34.13% is the change from 967 to 637
Calculation steps:
[( 637 - 967 ) ÷ 967] x 100 = -34.13%
Formula
Percentage change = [(637 - 967) / 967] x 100
Subtract the new number by the original number
637 - 967 = -330
-330 ÷ 967 = -0.34126163391933817
-0.34126163391933817 x 100 = -34.13%