-52.33% is the change from 644 to 307
Calculation steps:
[( 307 - 644 ) ÷ 644] x 100 = -52.33%
Formula
Percentage change = [(307 - 644) / 644] x 100
Subtract the new number by the original number
307 - 644 = -337
-337 ÷ 644 = -0.5232919254658385
-0.5232919254658385 x 100 = -52.33%