-6.75% is the change from 637 to 594
Calculation steps:
[( 594 - 637 ) ÷ 637] x 100 = -6.75%
Formula
Percentage change = [(594 - 637) / 637] x 100
Subtract the new number by the original number
594 - 637 = -43
-43 ÷ 637 = -0.06750392464678179
-0.06750392464678179 x 100 = -6.75%