-40.91% is the change from 528 to 312
Calculation steps:
[( 312 - 528 ) ÷ 528] x 100 = -40.91%
Formula
Percentage change = [(312 - 528) / 528] x 100
Subtract the new number by the original number
312 - 528 = -216
-216 ÷ 528 = -0.4090909090909091
-0.4090909090909091 x 100 = -40.91%