-42.05% is the change from 528 to 306
Calculation steps:
[( 306 - 528 ) ÷ 528] x 100 = -42.05%
Formula
Percentage change = [(306 - 528) / 528] x 100
Subtract the new number by the original number
306 - 528 = -222
-222 ÷ 528 = -0.42045454545454547
-0.42045454545454547 x 100 = -42.05%