-41.86% is the change from 528 to 307
Calculation steps:
[( 307 - 528 ) ÷ 528] x 100 = -41.86%
Formula
Percentage change = [(307 - 528) / 528] x 100
Subtract the new number by the original number
307 - 528 = -221
-221 ÷ 528 = -0.4185606060606061
-0.4185606060606061 x 100 = -41.86%
Example